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Home My WebLink AboutO.B. 02 TRAFFIC CNTL'S 05-04-921"-% C KI n A ( C, .1 1 OLD BUSINESS NO. 2 5-4-92 r ` inter-Corn r, ,)ATE: APRIL 21, 1992 11-1;.V `,N TO: WILLIAM A. HUSTON, CITY MANAGER FROM: PUBLIC WORKS DEPARTMENT/ENGINEERING DIVISION SUBJECT: INVESTIGATION OF TRAFFIC CONTROLS AT THE INTERSECTION OF FIRST STREET AND "B" STREET RECOMMENDATIONS: It is recommended that the City Council, at their meeting of May 4, 1992 direct staff to monitor the traffic flow and activity at the intersection'of First Street and "B" Street. It is also recommended that the City Council direct staff to prepare an additional traffic signal warrant study for the intersection of First Street and "B" Street after the First Street bridge, across the SR -55 Freeway,is reopened by Caltrans. BACKGROUND: At their meeting of February 3, 1992, the City Council considered an item entitled "Request For Traffic Signal Or Stop Signs At The Intersection Of First Street And "B" Street." Following discussion, the Council directed staff to prepare a warrant study for the intersection of First Street and "B" Street. A copy of the noted agenda item is attached to this report. DISCUSSION: The Traffic Engineering Section has conducted a warrant study (attached) on the subject location. The results of the study indicate that a traffic signal or all -way stop controls are not warranted at this time, based upon the guidelines established by the State of California. Although a traffic signal is not warranted at this time, the study recommends that this location should be placed on the City's Capital Improvement Program (CIP) list for the possibility of future signalization. This location is currently included on the CIP list and is planned for future signalization in the 1995-96 fiscal year. The study also indicates that the subject intersection should be regularly monitored for traffic flow and activity and an additional warrant study should be prepared after the opening of the First Street bridge, across the SR -55 Freeway, which is tentatively scheduled for February, 1993. Obert S. edendecker Dou as R. Anderson Director of Public Works/City Engineer Transportation Engineer RSL: DRA:klb: FRST&B Attachmcnt AG E N DA DATE: JANUARY 23, 1992 Inter -Com TO: WILLIAM A. HUSTON, CITY MANAGER FROM: PUBLIC WORKS DEPARTMENT/ENGINEERING DIVISION SUBJECT.- REQUEST FOR TRAFFIC SIGNAL OR STOP SIGNS AT THE INTERSECTION OF•FIRST STREET AND "B" STREET RECOMMENDATIONS: By motion, direct City staff to prepare a warrant study for the • intersection of First Street and "B" Street. _ BACKGROUND: • The City has received a letter, dated January 16, 1992, from Kathy Hiles requesting the installation of a traffic signal or stop signs at the intersection of First Street and "B" Street. A copy of the letter and a location map are attached to this report. First Street is classified as a primary arterial with a design capacity of 30,000 vehicles per day at level of service "C". Prior to the closing of the First Street bridge .over the 55 Freeway, First Street carried an estimated 28,000 vehicles per .day in the vicinity of "B" Street. "B" Street is classified as a local street. DISCUSSION: The Traf f is Engineering Section will conduct a warrant study on the intersection if the City Council so desires. Robert S. Ledendecker Director of Public Works/ City Engineer RSL:DRA:ccg:cc*gcnda Attachments 0 Dou as R. Anderson Transportation Engineer `a ' VIT JAN 11 7 1992 i [TUSTIN PUBLIC WORKS DEE' . January 16, 199 The Ci-�:y of 'Tustin 15222 vel Amo Avenue Tustin, CA 92680 Re: Intersection at First_ and B io rihOln it I�fay Gonvern I am writing regarding the unregulated intersection at First and B in Tustin. I have worked near that inter -sect -,.on for over three years. During that time, I have heard and/or seen at least five accidents occurring at that intersection. I am positive many more occurred during other tinces of the day or on tt;e waekenct although I was not a witness to those. Whv has the cit y o�. the co;:nt 1 no* iti, stal1-. r.::. the vevur lea:: t,:.; a :;tor, sign to 11e1r) rOqul.a.te the.. ery I: Our: : intersection. Llementary, c :i? dI, n mL' = t c_oss -r-slat Wit_. eti•t eve:rvday on the way to their school. on B StrEet . = have _p-:�kt:1.n with sever=al: people w, -.D al -;c) •-,+ant to ;:i:a;! w1-:1• i,�stalled ;-et. Is the city waiting it i tag for. so:ce=;�._ Lco ";�: K11 1 ea z:--.E•-� first, and then be: named as a def endaiit is iihat I assume vou1.(3;, be another lawsuit againEt the city for an acc idernt: occurring at teat intersection. Two weeks ago I ham. to telep of:e 911 after a v•_hic-le ran over a 15 vez_r o ,.d girl and a four year c; :.d boy -.,?h.c-) were rightfully c_ossing the street; they were not dart outs". Something r=ust be done now. I have a friend who lives on B street who is so nervous tila - int ersectioli that she "wit_ not even C.LLv:_-zi i tie 6t.Leet to go to thE! park Lor fear she and/or her baby will be hit and injured. Wri-iin rational adults cannot even cress a :.i.. -..'fit without hexing cor,suiltea wrong is n. be corrected by fear something -s c c-rta— r•11 -care►_:(, . by ins -calling a S -0 -'Lal lig:.z c,::• And this stop sign. It our of il,e .N►ere ti, t=ake a O: the: .'.'e.._..'E::':t; ^-- t s a would c:.0 J_c.k1,, lea. -L -n hew 1:(::C11y a light -i:: d0 not —a:it ur iA I a.rt%—., r chl' lC' is .,er_.oasly Yu hcive the pc�,-car t : control - ]=le��_.:- •la I AVENUE < I4 n c ACIFIC s A = z v+ K � Z L ----0O0 % EL CAMINO AEAL �O t• f 'LS�►DE N A V AV \ o 1 0 KA MYRTLIE AVE Z _ ION 148 O v MCIFIC ST. w U O CA T. Vic WOR O Z CALIF ST 0 FL CAMINO REAL {A AVE N 8 CNi O s f0-4 `rv U wv -'%� O O no �+ e,) Aw A CENTENNIAL MAY 100s PROSPECT N rJ 0 W I U C c /r/kAt Rock E. Miller & Associates Troffic & Transportation Engineers April 15, 1992 Mr. Dana Kasdan Engineering Division City of Tustin 15222 Del Amo Avenue Tustin CA 92680 Subject: Traffic Study for "B" Street at First Street Dear Mr. Kasdan: In accordance with your authorization, Rock E. Miller and Associates has completed the subject study of existing traffic conditions at the intersection of "B" Street and First Street in the City of Tustin. The report was prepared primarily to address the need and justification for multi -way stop controls, traffic signals, or other similar actions at the subject intersection. It has been a pleasure to prepare this report for the City of Tustin. Please contact me, if you have any°questions about the report or if you need additional information. Sincerely, l4k1�k;:;m- Rock E. Miller, P.E. Principal tufirbee.stu\91051 /QROGESS/p�,\ � No. 1139 m Expkes 9/30/92 �ZO FOF CAl\FD``� 17852 East Seventeenth Street, Suite 107, Tustin, CA 92680 FAX (714) 573-9534 TEL. (714) 573-0317 Traffic Study for "B" Street at First Street Presented to: City of Tustin Engineering Division 15222 Del Amo Ave Tustin, CA 92680 (714) 544-8890 Prepared By: Rock E. Miller and Associates 17852 E. 17th Street, #107 Tustin, CA 92680 (714) 573-0317 April, 1992 I SUBJECT AND RECOMMENDED ACTION ' The City Council of the City of Tustin has directed City Staff to study traffic conditions and to determine the need for additional traffic controls at the intersection of "B" Street and First Street, a location near the center of the City. The study indicates that current traffic conditions do not justify construction of traffic signals, however volumes on First Street have reduced substantially since its closure at Route 55. if volumes rise to pre -closure levels and traffic on "B" Street remains at current levels, traffic signals would be warranted according to the guidelines used to evaluate the need for traffic signals. The City should monitor traffic conditions at the location after First Street at Route 55 reopens and regularly thereafter to evaluate the need for traffic signals. The priority for traffic signals at the location should be evaluated and compared with traf f is needs at other locations in the City. When the location is among the highest priority needs in the City, funding for signals should be considered as a component in the City's future Capital Improvement Program. STATEMENT OF ISSUES OR PROBLEMS At the February 3, 1992 Meeting of the Tustin City Council, the council heard a preliminary report from City Staff regarding the intersection of "B" Street at First Street. The report accompanied a letter from Ms. Kathy Hiles dated January 16, 1992, regarding intersection conditions and particularly difficulty for pedestrians to cross First Street. The report, letter, and meeting minutes excerpt appear in this report appendix. Problems of the type cited could potentially be corrected by the installation of multi -way stop controls or by traffic signals. However, if traffic conditions are not proper for these types of control, problems could be aggravated. INTRODUCTION AND BACKGROUND "B" Street intersects with First Street at a location in a business district near the center of the City. The intersection is controlled by stop signs for traffic on "B" Street. Traffic on First Street is not required to stop by traffic signs or signals. There are marked yellow school crosswalks across the north and east legs of the intersection, and a school crossing guard is present to provide for pedestrian traffic during school hours. The U.S. Federal Highway Administration and Caltrans have established and published commonly accepted traffic guidelines for installation of stop signs and traffic signals. These guidelines 1 -- are known as "warrants". The Federal and State versions of these warrants are virtually the same, however 'the Caltrans Traffic. Manual provides more discussion and guidance to facilitate analysis. It is thus the source of information normally utilized for analysis of traffic conditions to evaluate the need for additional intersection controls. Warrants for Multi -way stop signs are based primarily upon traffic volume and accident records. The warrants are stated in the Caltrans Manual, as follows: "Any of the following conditions may warrant a multi -way stop sign installation: 1. Where traffic signals are warranted and urgently needed, the multi -way stop may be an interim measure that can be installed quickly to control traffic while arrangements are.being made for the signal installations. 2. An accident problem, as indicated by five or more reported accidents within a 12 month period of a type susceptible to correction by a multi - way stop installation. Such accidents include right- and left -turn collisions as well as right-angle collisions. 3. Minimum traffic volumes (a) The total vehicular volume entering the intersection from all approaches must average at least 500 vehicles per hour for any 8 hours of an average day, and (b) The combined vehicular and pedestrian volume from the minor street of highway must average at least 200 units per hour for the same 8 hours, with an average delay to minor street vehicular traffic of at least 30 second per vehicle during the maximum hour, but (c) When the 85 -percentile approach speed of the major street traffic exceeds 40 miles per hour, the minimum vehicular volume requirement is 70 percent of the above requirements. Fulfillment of warrants indicates that installation of multi -way stop controls may be useful. If these warrants are not fulfilled, there probably is no traffic justification to recommend multi -way stop controls. The Caltrans Traffic Manual also provides warrants for traffic signals. There are currently 11 warrants for traffic signals at existing intersections. The pertinent sections of the Traffic Manual are reproduced in the appendix, while the warrants and their intent are discussed below. Warrant 1 - Minimum Vehicular Volume is most applicable when the volume of intersecting traffic is the principal reason for traffic signals. Normally total delay is reduced when this warrant is met. It is fulfilled when traffic volumes on both streets exceed specific values for eight hours of the day, with allowance for speeds and traffic lanes. 2 Warrant 2 - Interruption of Continuous Traffic applies when traffic volume on the major street is so heavy that traffic on minor intersecting street suffers excessive delay or hazard in entering or crossing the major street. This warrant is also fulfilled for specific traffic volumes over 8 hours, as above, but traffic requirements on the major street are higher and traffic on the minor street is lower. This warrant is most likely to be the first warrant fulfilled at locations such as the study inter- section. Warrant 3 - Minimum Pedestrian Volume - Applies when pedestrian usage is heavy, 100 or more for four hours or 190 or more in a single hour, coupled with specific traffic requirements for the major street. This warrant is potentially applicable. Warrant 4 - School Areas applies at heavily used school crossings, This warrant requires 100 or more school age pedestrians in each of two hours, as well as substantial vehicular traffic. The subject intersection is a school crossing, so this warrant is potentially relevant. . Warrant 5 - Progressive Movement can be met only when there are no traffic signals within 1000 feet. It is not applicable to this study. Warrant 6 - Accident Experience normally applies when traffic based warrants are not met, but five or more "correctable" accidents are occurring annually and less restrictive measures are not effective. Signals will normally be warranted by one or more other criteria before this criteria is met. It is important to stress that traffic signals may cause increases in total accidents at locations, and that most accidents on City streets occur at traffic signals. Warrant 7 - Systems Warrant applies when both streets are very important regional routes. It is not applicable at the study location. Warrant 8 - Combination of Warrants provides for locations where Warrant 1 and Warrant 2 above are not fully met, but both are within 80% of being met. Usually the minor street exceeds Warrant 2 significantly, and the major street exceeds Warrant 1 but not Warrant 2, for this condition to be met. Warrant 9 - Four Hour Volume Warrant is similar to and normally consistent with the results of Warrant 1 and Warrant 2, however traffic data collected during peak hours used in capacity studies can be used in place of 24-hour machine counts to calculate this warrant. Warrant 10 - Peak Hour Delay is met only when side street traffic is suffering very heavy delay for one hour, over two minutes for every vehicle, but traffic is light at all other times. It is normally met alone, only at exits to large factories or similar developments. Warrant 11 - Peak Hour Volume is an alternate form of Warrant 10, not requiring delay measurements. Both warrant 10 and 11 are not normally triggered unless other warrants are also attained. Attainment of any one of the above warrants suggests that signals may be an appropriate form of traffic control, however this does not necessarily provide justification or establish the necessity to install traffic signals. In-depth engineering studies should be conducted at locations meeting warrants to insure that traffic conditions would be improved by the installation of traffic signals. Also, due to the high and ongoing construction, energy and maintenance expense of traffic signals, the need for traffic signals at a specific location should always be weighed against the needs for traffic improvements at other locations in the City. DISCUSSION AND ANALYSIS Existing Conditions - B" Street "B" Street is a two-way two-lane local street, north and south of First Street. It is located about one-fourth mile west of E1 Camino Real. "B" Street varies from 28 feet to 40 feet curb -to - curb in the vicinity and parking is generally permitted. About 100 feet south of First Street, "B" Street has been widened along the east curb to provide for diagonal parking for the adjacent Peppertree Park. The west frontage is single family residential, except for an office building on the southwest corner. North of First Street, frontage on both sides is single family residential, except for the properties located on the northeast and northwest corner of First Street, which are commercial and office uses. "B" Street traff is is given intermittent priority by traff is signals at nearby intersections to the south on Main St and to the north at Irvine Boulevard. The absence of intersection controls giving priority to "B" Street at First Street could be considered to be an interruption to the system continuity of traffic controls along "B" Street. First Street First Street is a four lane divided arterial street, travelling east/west through this portion of the City. It is designated as a Primary Arterial on the City General Plan, and it is constructed and striped consistent with this designation. Raised medians are provided along First Street, and left -turn pockets and cross 4 traffic are provided at the intersection with "B" Street, however U-turns are prohibited by signs. First Street serves a strip of commercial uses in the vicinity. A variety of retail businesses, small and large shopping centers, offices, and other uses are located all along the street in the project vicinity. There is also some high density residential development present. All intersections along First Street from the west City limit to Newport Boulevard are controlled by traffic signals or by stop signs for the side street only. There are no Stop sign controls on First Street traffic in the vicinity. Signals are provided at Tustin Avenue, Yorba Street, El Camino Real, Prospect Street, Centennial Way, and at Newport Boulevard. The traffic signal at E1 Camino Real is about 700 feet from "B" Street. First Street is currently closed to all traffic at the Route 55 Freeway for construction, and it will remain closed until after the end of 1992. This would cause a significant change in traffic volumes and characteristics on First Street. It may also cause changes on "B" Street, however these would be secondary and less significant. Intersection Physical Conditions The alignment for the north and south legs of "B" Street are offset by about 65 feet approximately across First Street. The north leg is located to the east of the south leg. Traffic movements through this offset condition are provided by an "S" curve south of First Street. A raised planted island is located near First Street and provides channelization for a right-turn merge lane from eastbound First street to Southbound "B" Street. A large pepper tree is located within this island. The geometrics of the intersection are shown in Figure 1. The width of the two-way portion of "B" Street is 28 feet adjacent to the island. This width is significant, because vehicles turning right must wait behind vehicles proceeding straight or turning left onto First Street. This one-lane condition substantially reduces the traffic volumes required to meet traffic signal warrants. There is a marked school crosswalk across the east leg of First Street and across the north leg of "B" Street. Crosswalks are also striped on both sides of the island in the south leg. A School Crossing Guard is present during school traffic hours. Parking is currently prohibited on First Street at all curbs adjacent to "B" Street. These prohibitions are generally adequate for keeping parked vehicles from interfering with sight distance lines for motorists on "B" Street. 5 u E I L 0 �a 4) Q i dllS - ' First Street 1"=50' lR IAE Rock E. Miller & Associates First Street & B Street Intersection Conditions FIGURE i Sight distance for motorists traveling northbound on "B" Street is limited by the large pepper tree located in the island at the intersection. Rock E. Miller and Associates measured the location and found that 190 feet of sight distance is present based upon Caltrans measurement standards. This provides for safe stopping distance for speeds on First Street up to 29 mph. Motorists can normally creep forward up to five feet past the Caltrans standard location without interfering with cross traffic, and sight distance substantially increases as vehicles move forward. Traffic Counts Traffic counts were taken for this study by Traffic Data Services of Santa Ana, California. These counts were taken while the bridge at Route 55 was closed. The counts indicate daily traffic levels on First Street at about 12,000 vehicles per day, total, for both approaches to "B" Street. Approach counts taken in one direction on "B" Street at First Street range from 700 to 900 vehicles per day. Counts were also taken at a nearby location on First Street in late } 1989. These counts indicate a daily volume of about 27,000 vehicles, so the existing traffic volume is down by over 50%. No past counts are available for "B" Street, however the current volume is estimated to be within 10 percent of the volume which would exist if First Street was open. Figure 2 indicates relevant daily traffic volumes for each direction on "B" Street and on First ' Street. Volume Analysis for All -Way Stop Controls Multi -way stop controls are useful when traffic volumes on both intersecting streets are nearly equal and high enough that vehicles on the stopped approach experience undesirable or unnecessary delay, due to traffic on the unstopped cross street. Traffic warrant guidelines indicate that the combined volume of all vehicles entering the intersection should average 500 vehicles per hour (about one vehicle every 5 seconds, approximately) for eight hours of the day, and that at least 200 of these vehicles (one vehicle every 18 seconds) should be on the lesser used street approaches to the intersection. This condition assures that three or more approaches to the intersection are nearly equally used, and that one or more vehicles will normally be present at the intersection for at least eight hours of the day. Multi -way stop controls are also useful when traffic accidents correctable by these controls are evident in records. They are also useful when traffic signals are warranted, as an interim measure while arrangements are being made for traffic signal installation. 0 1 0 l< i —27,011 -- - -- ---1989 --- --- --- — 5083 — i 7565 .L. 1"= 500') Current unless Year Indicated L.— /P lEl"'�* Rock E Miller & Associates First Street & B Street Traffic Volumes FIGURE 15 I Multi -way stop controls can significantly reduce traffic capacity and cause congestion on heavily used streets. Traffic volumes of more than 500-700 vehicles per hour per lane would result in substantial congestion and long back-ups of traffic. Traffic signals are more suitable for these conditions. The traff is counts taken for this study were analyzed to determine if traff is volumes are within the published warrant levels. Table 1 compares the existing counts to the traffic warrant values. Additional warrant information appears in this report appendix. Table 1 MULTI -WAY STOP WARRANT SUMMARY "B" Street at 1st Street Warrant 1989 Existing Requirement Eight -Hour Average: AM Approaches 2139 1100 500 Minor St. Total 148 148 200 A Multi -way stop is NOT warranted, due to insufficient Minor Street Volume Existing traffic levels are low on "B" Street, lower than the traffic warrant volumes suggested. Existing traffic levels must increase by 35% on "B" Street to approach the recommended traffic levels. This level of traffic growth is not expected. Existing traffic volumes on First Street do not exceed 500 vehicles per hour per lane for any hour. Congestion would not be expected for the existing volumes. A traffic count taken in 1989 indicates that the volume exceeded 500 vehicles per hour per lane for at least five hours. It is likely that extreme traffic congestion would occur if stop signs were installed and traffic levels rose to 1989 levels after the Route 55 bridge is reopened. All way stop controls should not be installed at this location. These controls are not warranted by traffic volumes currently or anticipated in the future. Extensive congestion would occur at this location on First Street, if all -way stop controls were installed. Accident Analysis The City of Tustin maintains records of all accident reports taken by the City. These records normally represent all injury accidents 7 and accidents where vehicles were inoperable after collision. They would not contain records of minor unreported accidents. The City accident records were checked to determine if an existing safety problem is evident. There were 11 reports on file for the location from 1989 to 1991. Nine of the reported accidents would have been potentially corrected by traffic signals, including 4 in 1990. Two accidents involved pedestrians, while four of the reported accidents resulted in injuries. 4 The safety record at the location is significant, and corrective measures would be justified, however all -way stop controls would not be warranted by safety alone, and the congestion problem expected on First Street would likely increase the total number of accidents if stop signs were installed. Analysis for Traffic Signal Controls The eleven traffic signal warrants published by Caltrans were discussed previously. The City of Tustin has collected all information necessary to analyze all of the applicable warrants at this location. Table 2 summarizes each of the warrants and indicates whether the warrant is met based upon existing volumes or based upon 1989 volumes for First Street. The intersection is very close to meeting several of the warrants based upon existing volumes. Two warrants would be met, if the 1989 volume returns after the street is reopened, and if traffic on "B" Street does not decrease. Table 2 TRAFFIC SIGNAL WARRANT SUMMARY * Warrant met for seven hours and within 6 vehicles for the eighth hour. 8 Existing 1989 Warrant Volumes Volumes Min. Vehicle Volume No - 46% No - 46% Interruption No - 91% No - 92%* Min. Pedestrian volume No - 67% No - 67% School Area Ped. Volume No - 44% No - 44% Progressive Movement No No Accident Experience No - 80% No - 80% Systems Warrant No No Combination of Warrants No No Four Hour Volume No Yes Peak Hour Delay No No Peak Hour Volume No Yes * Warrant met for seven hours and within 6 vehicles for the eighth hour. 8 0 Traffic Warrant studies do not directly account for the type of traffic controls present at other intersections along a street. "B" Street currently is signalized at Irvine Boulevard and at Main Street, and it has right-of-way priority at all intervening intersections except First Street. The placement of traffic signals at First Street would be a logical extension of the priority of Right -of -Way along "B" Street. If the intersection at First Street was signalized, it is likely that some additional traffic would be attracted to "B" Street as a route between Irvine Boulevard and Main Street. Conversely, the residential character of the street may not be compatible with significant traffic increases. If the intersection is to be signalized, traffic increases should be a concern. Rock E. Miller and Associates would recommend that the intersection be closely and regularly monitored for potential future signalization. Its needs should be considered together with other traffic improvements when Capital Improvement Funds are budgeted. Other Potential Improvements When the need for traffic signals is identified, less costly measures which may potentially improve conditions at a subject location should be considered or implemented first. These improvements are normally in the form of channelization, parking restrictions to improve sight distance for approaching vehicles, or removal of sight distance obstructions. Removal of the large peppertree in the island would improve sight distance, but motorists can creep forward slightly from the Caltrans recommended location and see safely around the tree. Removal of the tree would not substantially improve vision, and the loss of this tree would be significant. Red curb is already provided on all four corners of First Street, and parked vehicles do not obstruct necessary vision lines. The intersection is posted adequately to indicate the crosswalk, and the speed limit, 35 mph, is as low as could be justified for the type of roadway. Prohibiting left -turns from "B" Street to First Street would reduce traffic demand for the intersection. Widening of "B" Street to provide for right -turns northbound would also help to reduce delay. This would be relatively expensive, but none of the warrants for signalization would be met, if this widening was constructed. There are no near term measures apparent which would substantially change intersection conditions, and which would be acceptable for recommendation. 1 i ALTERNATIVES ' Alternative actions which could be implemented are as follows: 1. Monitor future conditions and consider in future Capital Improvement Program budgets to construct a Traffic Signal. 2. Install All -Way Stop Controls, although extensive congestion may result of First Street. 3. Install Traffic Signals, Immediately 4. Prohibit left -turns from "B" Street to First Street. 5. Widen "B" Street northbound to provide a right -turn lane. 6. Remove the large peppertree in the island to improve sight distance. 7. Restudy the intersection and reevaluate warrants after First Street is reopened at Route 55. 8. Make no changes in existing traffic controls. CONCLUSION jr Traff is conditions at the intersection of "B" Street and First Street do not currently meet criteria for installation of all -way stop signs or traffic signals, however it is probable that several warrants will be met when First Street is reopened at Route 55. Traffic volumes on First Street were much higher prior to its closure at Route 55. Stop signs would produce severe congestion, if implemented after the bridge is reopened and past volumes return. RECOMMENDATIONS 1. The City should restudy the intersection after the First Street bridge at Route 55 (and Route 5) is reopened, and regularly thereafter. 2. The City should consider the installation of traffic signals at the location during capital improvement fund budgeting fdr traffic signals and other traffic related improvements. 3. Cities typically maintain for ongoing study, lists of intersections where traffic signals are a consideration. The location should be included on such a priority list. W There may be other locations within the City where current needs for traffic improvements are greater than at the subject location, however at some point in the future, the subject location will likely be the highest priority in the City for traffic signalization. 11 - Letter Request - Council Agenda - Council Minutes - Multi -Way Stop - Traffic Signal - Traffic Count - Traffic Manual 12 from Kathy Hiles Report, 2/3/92 Meeting Excerpts, 2/3/92 Meeting Warrants Warrant Worksheets Summaries Warrant Information I 1 n1 JAN 1 7 1992 ETUSTIN PUBLIC WORKS DEN,_ January 1 C= , 19 c 2 The Ci-t:y of Tustin 15222 Del Amo Avenue Tustin, CA 92680 Re: Intersection at First_ and B i o w1ioiii it I -lay Cone; ern : I am writing regarding the unregulated intersection at First and B in Tustin. I have worked clear that intersect_on for ever three years. During that time, I have heard and/or seen at least five accidents occurring at that intersection. I --m pos-i Live many more occurred during other t.=cries of the day or on the waekend although I was not a witness to those. 141�v; leas Che its ; o,_ the co;:nty) not- 1r, c _a= .� ;d a �, : r -_ , :l the vc2 least.; a btop Sign to :e:._j r::r,t.:late tha- vorl; i:ztersectiori. Lianientarj� a;;hc�vi c ii-� d .n ML,: %_ __.oSs c��at _ t_: Et t evervda`T on the way to their schoa:. 011 B StrEF!:� . _ 'r:.- ve1:— n with sever :l,people ca to ::i:c=;� :a1-:1• Hatt:..::_; l:c.:; :�ec::: 1:::ir- ed ; ..t. Is the C.L-Ly Wal -- fly for LCo K112:ed L.`.erc: f irst , and then be na— ed as G def endcuit i.s �ihiat L assumes WoLlc` be another lawsuit against the: city for an ac.:: i dent: occurring at =chat intersection. Ttdu weer. ago I had. to telop'n,cl-c, Q_ 11 after a v._hi.cLe ran over a 15 year o 1-.d girl and a four year c)_ -_ r_1 Loy -. h.c., were rightfully crossing the street; they were not dart outs" . Something Asst be done now. I have a friend who lives on B s --reef who is so nervous _eyart=_. g that. i17Li.er5actieri Lila she wil- not even to go to `he park for fear she and/or her baby will be hit and injured. D7:i n rational adults cannot even c.rc ss a without ieinu corisunteci boy fear something _s et;rtr:-n].:T vronr; . Anti t:iiis wrong can be c,-�rrected by installing a s_c:lsl Liy:_t r.: r3top sign. if your office rrere -.c, take .4 ;poll of the ;•es_t:= o L S y�:)a wou1d c.0 J.rk:l}� 1F=urn ho:� 1:�::cll�T �t right ia_.. chile.' i.,, ...r:_ ;usv You take control. 1=1eii_ :. .i c. L ,: 'ir �r__. .� / Kathy �SADE04A " A _ O O TLIE _> z o tOJN 148 O I � v PACIFIC ST O 000 EL CAMINO REAL ' vcbO 400 ,j CALIF ST A N b ST Fm six Z o p z FL CAMINO REAL 8 N 100s P140SPE T _ AVE ' � N MN m-4 DA OEM 1 w30 O O AO z z CENTENNIAL MAY / A 100S a oma\ - n PROSPECT I I AGENDAo--�)-cr�,,- Inter-Com L' ATE: JANUARY 23, 1992 TO: WILLIAM A. HUSTON, CITY MANAGER FROM: PUBLIC WORKS DEPARTMENT/ENGINEERING DIVISION SUBJECT: REQUEST FOR TRAFFIC SIGNAL OR STOP SIGNS AT THE INTERSECTION OF FIRST STREET AND "B" STREET RECOMMENDATIONS: By motion, direct City staff to prepare a warrant study for the • intersection of First Street and "B" Street. I - BACKGROUND: The City has received a letter, dated January 16, 1992, from Kathy Hiles requesting the installation of a traffic signal or stop signs at the intersection of First Street and "B" Street. A copy of the letter and a location map are attached to this report. First Street is classified as a primary arterial with a design capacity of 30,000 vehicles per day at level of service "C". Prior to the closing of the First Street bridge over the 55 Freeway, First Street carried an estimated 28,000 vehicles per .day in the vicinity of "B" Street. "B" Street is classified as a local street. DISCUSSION: The Traffic Engineering Section will conduct a warrant study on the intersection if the City Council so desires. Robert S. Ledendecker Director of Public Works/ City Engineer RSL: DRA: ccg: ccag coda Attacbmmu 0 Douglas R. Anderson Transportation Engineer CITY COUNCIL MINUTES Paqe 3, 2-3-92 VI. PUBLIC INPUT 1. UNPROFESSIONAL TREATMENT BY CITY ATTORNEY Dr. Tom Birney, 1071 E1 Camino Lane, Santa Ana, reported he had submitted a claim against the City for property damage and had received unprofessional treatment from the City Attorney. 2. OPPOSITION TO HEALTH AND RETIREMENT BENEFITS FOR CITY ATTORNEY Terrence Hickey, 1762 Roanoke, Tustin, spoke in opposition to the City Attorney receiving health and retirement benefits. VIZ. CONSENT CALENDAR Item Nos. 2, 4, 16, and 18 were removed from the Consent Calendar iece. It was mved by Councilmember Potts and a member of the u�hen remai der ofothe by Potts seconded by Prescott, to approve Consent Calendar as recommended by staff. Motion carried 5-0. 1. APPROVAL OF MINUTES - JANUARY 20, 1992 REGULAR MEETING Recommendation: Approve the City Council Minutes of January 20, 1992. 3. LAMBERT SCHOOL LEASE RENEWAL Recommendation: Renew the lease with the Tustin Unified School District for use of Lambert School for a period of one year commencing on February 1, 1992, and ending January 31, 1993; and authorize the Mayor to execute subject lease as recommended by the Community Services Department. 5. REJECTION OF CLAIMNO. • IASSSI 7/ 91� DATE SOUTHERN WITH CALIFORNIACITY EDISON 11/21/91 Recommendation: Reject subject claim for property damages in the amount of $2,376.11 as recommended by the City Attorney. 6. RESOLUTION NO. 92-23 - A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF TUSTIN, CALIFORNIA, ACCEPTING WORKS OF IMPROVEMENT AND AUTHORIZING RECORDATION OF NOTICE OF COMPLETION FOR THE AND WATER MAIN REPLACEMENT ON WOODLAND DRIVE, ZIG STREET Recommendation: Accept the improvements constructed and authorize the recordation of the Notice of Completion for said improvements with the adoption of Resolution No_ 92-23 as recommended by the Public Works Department/Engineering Division. 7. REQUEST FOR TRAFFIC SIGNAL OR STOP SIGNS AT THE INTERSECTION OF FIRST STREET AND "B" STREET Recommendation: Direct staff to prepare a warrant study for the intersection of First Street and "B" Street- as recommended by the Public Works Department/Engineering Division. 8. DECLARATION OF SURPLUS VEHICLES AND WORK EQUIPMENT Recommendation: Declare the specified equipment surplus and not required for public use and authorize the Public Works Department to dispose of the equipment in accordance with Ordinance No. 871 as recommended by the Public Works Department/ Field Services Division. 9. LOWER PETERS CANYON RETARDING BASIN Recommendation: Approve the granting of an easement to the Orange County Flood Control District and authorize the Mayor to execute an easement deed for the Lower Peters Canyon pipeline facility on Lot 23, Tract No. 12870 and Lot 22, Tract No. 13627 as recommended by the Public Works Department/Engineering Division. 10. RESOLUTION NO. 92-13 - A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF TUSTIN, CALIFORNIA, AMENDING THE CLASSIFICATION PLAN Recommendation: Adopt Resolution No. 92-13 amending the C E Four Way Stop Warrant Major Street: --===First Street________________________ Minor Street: B" Street Condition: Existing Eight Highest Hours Major Street Minor Street Minor All East West North South Street Legs Hour Bound ---------------------------------------------------------------- Bound Bound Bound Total Total 5-6p 456 585 93 100 193 1234 2-3p 344 571 89 94 183 1098 1-2p 404 628 103 69 172 1204 4-5p 355 519 94 70 164 1038 6-7p 351 472 79 65 144 967 3-4p 414 569 69 53 122 1105 12-1p 427 672 75 30 105 1204 8-9a ---------------------------------------------------------------- 267 583 35 68 103 953 8-hr Total ---------------------------------------------------------------- 3018 4599 637 549 1186 8803 8-hr Avg 377 575 80 69 148 1100 Warrant ---------------------------------------------------------------- 200 500 Four Way Stop is NOT Warranted by Volume Four Way Stop is warranted if Minor Street Average is above 200 and Total Average is above 500. 24 -hr Count 12648 1632 8 -Hour % of 24 ---------------------------------------------------------------- -hr 60% 73% ADT to,trigger Future Warrant 3985 2202 Four Way Stop Warrant -------------- Major Street: First Street Minor Street: B" Street Condition: 1989 Eight Highest Hours Major Street Minor Street Minor All East West North South Street Legs Hour Bound Bound Bound Bound Total Total ---------------------------------------------------------------- 5-6p 1537 1044 93 100 193 2774 2-3p 857 847 89 94 183 1887 1-2p 928 927 103 69 172 2027 4-5p 1216 1058 94 70 164 2438 6-7p 878 769 79 65 144 1791 3-4p 973 1033 69 53 122 2128 12-1p 1048 998 75 30 105 2151 8-9a 756 1054 35 68 103 1913 ---------------------------------------------------------------- 8-hr Total 8193 7730 637 549 1186 17109 ---------------------------------------------------------------- 8-hr Avg 1024 966 80 69 148 2139 Warrant 200 500 ---------------------------------------------------------------- Four Way Stop is NOT Warranted by Volume Four Way Stop is warranted if Minor Street Average is above 200 and Total Average is above 500. ----------------- 24-hr Count 27011 1632 8 -Hour % of 24 -hr 59% 73% ---------------------------------------------------------------- ADT to trigger Future Warrant 4071 2202 Traffic Manuel TRAFFIC SIGNALS AND LIGHTING 9-5 12-1986 r'1 Figure 9-1 A TRAFFIC SIGNAL. WARR TS CALC h641 404 DATE Jr/41Z R � (.—.. DIST CO RTE PM CHK DATE Major St: 19 5 74 Critical Approach Speed mph Minor St: 9 is 5f r Critical Approach Speed ZS mph Critical speed of major street traffic 2 40 mph--N--N-MNN---- Q OR RURAL (R) _ in built up area of Isolated community of < 10,000 pop. --------- ❑ JZJ URBAN (U) WARRANT 1 — Minimum Vehicular Volume 100% SATIISF1ED YES ❑ NO 80% SATISFIED YES ❑ NO El Hour • NOTE. Heavier lett turn movement from Major Street Included when LT -phasing is proposed ❑ WARRANT 2- Interruption of Continuous Traffic 100% SATISFIED YES ❑ NO 0 80% SATISFIED YES ® NO ❑ MINIMUM REQUIREMENTS (80% SHOWN IN BRACKETS) DU R CU) I R APPROACH LANES 1 2 or more S • (off11-2. /(,-IzgHour Both Apprchs. 750 525 :y(504)J1,0%1 630 % Motor Street (600) (420) 0?Z V �S' fDS 8Z3 //� �j3 ! V Highest ApDrch 75 5370Minor Street• 6 (42) (56)JJC0 110�)J `(y SO 7r 75- (� 7/5 'NOTE. Heavier left turn movement from Major Street included when LT -phasing is proposed ❑ WARRANT 3 - Minimum Pedestrian Volume 100% SATISFIED YES ❑ NO ❑ 80% SATISFIED YES ❑ NO ❑ MINIMUM REQUIREMENTS f80% SHOWN IN BRACKETS) U R MIN. REQUIREMENT DISTANCE TO NEAREST ESTABLISHED CRWLK FULFILLED --� Both Apprchs No Median 80 420 • . Major Street 4 (336) �� N � Hour Volume Raised 00 700 Q 4' Median (800) (560) -1 Ped's On Highest Volume 105 X -Walk Xing Major Street OQ (120) (84) �,-• IF MIDBLOCK SIGNAL PROPOSED ❑ The satisfaction of a warrant is not necessarily justification for a signal. Delay, congestion, confusion or other evidence of the need for right of way assignment must be shown. T3 -10A 0/ .10 92 MIN. REQUIREMENT DISTANCE TO NEAREST ESTABLISHED CRWLK FULFILLED 150 Feet N/E ft S/W ft Yes ❑ No ❑ The satisfaction of a warrant is not necessarily justification for a signal. Delay, congestion, confusion or other evidence of the need for right of way assignment must be shown. T3 -10A 0/ .10 92 k 9-6 TRAFFIC SIGNALS AND LIGHTING Traffic Manual u•,sae Figure 9-1 B ( f /6 TRAFFIC SIGNAL WARRANTS 9k,q+ WARRANT 4 - School Crossings Not Applicable ❑ See School Crossings Warrant Sheet .EI WARRANT 5 - Progressive Movement SATISFIED YES ❑ NO X MINIMUM REQUIREMENTS DISTANCE TO NEAREST SIGNAL FULFILLED > 1000 1t N S ft, E N, W tt YES ❑ NO M ON ONE WAY ISOLATED ST. OR ST. WITH ONE WAY TRAFFIC SIGNIFICANCE AND ADJACENT SIGNALS ARE SO FAR APART THAT NECESSARY PLATOONING 8 SPEED CONTROL WOULD BE LOST - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - OR - - - - - - - - - - - - - - - - - ON 2 -WAY ST. WHERE ADJACENT SIGNALS DO NOT PROVIDE NECESSARY PLATOONING a SPEED CONTROL PROPOSED SIGNALS COULD CONSTITUTE A PROGRESSIVE SIGNAL SYSTEM ❑ IR WARRANT 6 - Accident Experience SATISFIED YES ❑ NO 0 REQUIREMENT WARRANT ✓ FULFILLED ONE WARRANT WARRANT 1 - MINIMUM VEHICULAR VOLUME -•-•---------------------•-------•------------- OR - SATISFIED WARRANT 2 - INTERRUPTION OF CONTINUOUS TRAFFIC DURING EACH OF ANY 5 HRS OF A SATURDAY ANO/OR SUNDAY 80% OR WARRANT 3 - MINIMUM PEDESTRIAN VOLUME YES 32r NO ❑ SIGNAL WILL NOT SERIOUSLY DISRUPT PROGRESSIVE TRAFFIC FLOW ❑ ADEQUATE TRIAL OF LESS RESTRICTIVE REMEDIES HAS FAILED TO REDUCE ACC. FREO. ❑ ACC WITHIN A 12 MON. PERIOD SUSCEPTIBLE OF CORR. & INVOLVING INJURY OR > $200 DAMAGE - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - MINIMUM REQUIREMENT NUMBER OF ACCIDENTS 5 OR MORE' L❑ • NOTE. Lett turn accidents can be included when LT -phasing is proposed WARRANT 7 - Systems Warrant SATISFIED YES ❑ NO MINIMUM VOLUME REQUIREMENT ENTERING VOLUMES - ALL APPROACHES DURING TYPICAL WEEKDAY PEAK HOUR 800 VEH/HR VEH/HR ----------------------------------------------- DURING EACH OF ANY 5 HRS OF A SATURDAY ANO/OR SUNDAY VEH/HR CHARACTERISTICS OF MAJOR ROUTES MAJOR ST MINOR ST HWY SYSTEM SERVING AS PRINCIPLE NETWORK FOR THROUGH TRAFFIC ------- •----------- - - -• -- •------------ - f GS- - . /Q �" CONNECTS AREAS OF PRINCIPLE TRAFFIC GENERATION --------------•------------------------ Y 5--V.-. / RURAL OR SUBURBAN HWY OUTSIDE OF. ENTERING. OR TRAVERSING A CITY ----------------- •--------------- ------ �I% --- w /fl - - " HAS SURFACE STREET FWY OR EXPWAY RAMP TERMINALS - - • - - - - • - - • - - - - - - - - - - - - - - - - - - - - ye �- - l /�/O - APPEARS AS MAJOR ROUTE ON AN OFFICIAL PLAN V, S - - //p ANY MAJOR ROUTE CHARACTERISTICS MET. BOTH STS. FULFILLED YES 12� NO ❑ ■ ►: The satisfaction of a warrant is not necessarily justification for a signal. Delay, congestion, confusion or other evidence of the need for right of way assignment must be shown. T5-108 Traffic Manual TRAFFIC SIGNALS AND LIGHTING 9-9 Figure 9-1 E f ST �� . gx ST SCHOOL PROTECTION WARRANTS PART A ^r o4 `b CALC DATE R Vehicle Volume CHK DATE 350 DIST CO RTE P.M. School Age Pedestrians Each of 2 hours Major St: Critical Approach Speed mph 9% Minor St: Critical Approach Speed mph Crossing Street Critical speed of approach traffic >40 mph "'" """ OR RURAL (R) 500 350 In built up area of isolated community of C 10.000 pop. - 13 ❑ URBAN (U) FLASHING YELLOW SCHOOL SIGNALS SATISFIED YES ❑ NO ❑ (All parts must be satisfied) i Minimum Requirements PART A U R Vehicle Volume Each of 200 140 2 hours SATISFIED YES ❑ NO ❑ School Age Pedestrian Each of 40 40 Crossing Street 2 hours AND PART B Critical Approach Speed Exceeds 35 mph SATISFIED YES ❑ NO ❑ AND PART C Is nearest controlled crossing more than 600 feet away? SATISFIED YES ❑ NO ❑ SCHOOL AREA TRAFFIC SIGNALS SATISFIED YES ❑ NO ❑ (All parts must be satisfied) 1+ Q, v� AND PART B Is nearest controlled crossing more than 600 feet away? > SATISFIED YES ❑ NO I SATISFIED YES ❑ NO ❑ Minimum Requirements PART A ^r o4 `b U R Vehicle Volume Each of 2 hours 500 350 School Age Pedestrians Each of 2 hours 100 70 9% y� Crossing Street """""" or "'" """ per da 500 350 AND PART B Is nearest controlled crossing more than 600 feet away? > SATISFIED YES ❑ NO I SATISFIED YES ❑ NO ❑ W i Traffic Manual TRAFFIC SIGNALS AND LIGHTING Figure 9-1 C TRAFFIC SIGNAL WARRANTS WARRANT 8 - Capbination of Wairrants SATISFIED YES ❑ NO JK REQUIREMENT WARRANT ✓ ( FULFILLED TWO WARRANTS SATISFIED SATISFIED 80% t -MINIMUM VEHICULAR VOLUME R -170 -- YES ❑ NO ❑ 2 - INTERRUPTION OF CONTINUOUS TRAFFIC a 3 = MINIMUM PEDESTRIAN VOLUME I WARRANT 9 — Four Hour Volume 2 or Approach Lanes One more SATISFIED* % YES ❑ NO 4 Both Approaches , Major Street /o3z D (// 87 7 7 / S 6 Highest Approaches Minor street t u3 I cb q 4 9 � F 8 Hour 3. The total entering volume serviced during the hour equals or exceeds 800 vph for intersections with four or more approaches or 650 vpn for intersections with three approaches Y£S 13 No 12 WARRANT 11 — Peak Hour Volume SATISFIED* YES ❑ NO K 2 or Approach Lanes One more Hour 1BOthAPPrOaChM , Maior ft"t 10 32 Highest Approaches , Minor Street 103 *Refer to Fig. 9-2A (URBAN AREAS) or Figure 9-2B (RURAL AREAS) to determine if this warrant is satisfied. WARRANT 10 - Peak Hour Delay. SATISFIED YES 13 No 1. The total delay experienced for traffic on one minor street approach controlled by a STOP sign equals or exceeds four vehicle -hours for a one -lane approach and five vehicie-hours for a two-lane approach; and . YES mo.pr--.. 2. The volume on the same minor street approach equals or exceeds 100 vph for one moving lane of traffic or 150 vph for two moving lanes; and YES ❑No❑ 3. The total entering volume serviced during the hour equals or exceeds 800 vph for intersections with four or more approaches or 650 vpn for intersections with three approaches Y£S 13 No 12 WARRANT 11 — Peak Hour Volume SATISFIED* YES ❑ NO K 2 or Approach Lanes One more Hour 1BOthAPPrOaChM , Maior ft"t 10 32 Highest Approaches , Minor Street 103 -Refer to Fig. 9-2C (URBAN AREAS) or Figure 9-21) (RURAL AREAS) to determine if this warrant is satisfied. The satisfaction of a warrant is not necessarily justification for a signal. Delay, congestion, confusion or other evidence of the need for right of way assignment must be shown. TS -10C i MINOR STREET HIGH VOLUME APPROACH—VPH 0 0 0 0 o S cli0 0 A O Un 0 0 Ca 0 o 3i v RI O N 0 0 0 "4 CD N � p m In o � a 0 � m O m ,0 �ool m ID y b o _� O = o a r m mm Z D m z m V% V — r = p D Z m N 0 G Uv 0 0 y 0 9S61•Z l JenueW Dil.leal JNIiHJI'l QNV SIVNJIS 31:HVal OL -6 Z 0 m m r O -- � � m D < Z O OO 'v m r OUn m m CD I r -1 Z m (D p O m =2 O z °D —+ 0 0 = m i n o r z'� O m Fn r C.6O Z D C m Un -+ m 2 m T _ O r m � D m zp Z m � m Un Un " _ m O m r m O < D O r � C m O D M n MINOR STREET HIGH VOLUME APPROACH—VPH 0 0 0 0 o S cli0 0 A O Un 0 0 Ca 0 o 3i v RI O N 0 0 0 "4 CD N � p m In o � a 0 � m O m ,0 �ool m ID y b o _� O = o a r m mm Z D m z m V% V — r = p D Z m N 0 G Uv 0 0 y 0 9S61•Z l JenueW Dil.leal JNIiHJI'l QNV SIVNJIS 31:HVal OL -6 9.12 TRAFFIC SIGNALS AND LIGHTING Traffic Manual tt-tom g y Z ota W OCUA 9�< L co cc p *amp W a O p O O O O �O Q c) N HdA—HOVOUddv 3wmOA HOIH 133Ua WONIN O Co = W o O .- a. a. .> o a w of c0 W = � W m 0 O ~ O > Z W 3 ov Q O = WAIVJFA � 0 < W OIL Uj O :3 W o Q o o m Naz. r LL. LU > O 3 -j X G = O p W Z U O W O Co CL CL ~ IVA °C W a O X < rA C r../ O gJ.oOC) Z a O o CL O Q to 30 o o `O W � O 2 O O it ��► irisNow�Emmmm 0 O p O O O O �O Q c) N HdA—HOVOUddv 3wmOA HOIH 133Ua WONIN O Co = W o O .- a. a. .> o a w of c0 W = � W m 0 O ~ O > Z W 3 ov Q O = LL = F— � 0 < W OIL Uj O :3 W o Q o o m Naz. r LL. LU > O 3 -j X G = O p W Z U O W O Co CL CL ~ to °C W a O X < W m C r../ O gJ.oOC) Z a O o CL O Q to 30 o o `O W � O 2 O O it Traffic Manuel TRAFFIC SIGNALS AND LIGHTING 9-5 R 12.1986 Figure 9-1A TRAFFIC SIGNAL WARRANTS CALC 1� H DATE 3 6 Ti 420 C i-1 K R /-1 DATE �� DIST CO RTE PM 480 �.-.. Major St: 12 7 Critical Approach Speed �3 mph ti 4Hour Minor St: " Critical Approach Speed mph 1000 1(800) Critical speed of major street traffic 2 40 mph ❑ OR RURAL (R) in built up area of isolated community of < 10,000 pop. --------- ❑ ' J9 URBAN (U) WARRANT 1 - Minimum Vehicular Volume 100% SATISFIED YES ❑ NO 91 ^ 80% SATISFIED YES 1:1 NO MINIMUM RECiU1REMENTS y �-- (00% SHOWN IN BRACKETS) U R U I R APPROACH ? /4- SIZ-7pIt- (1'71' r�-/ 3 y LANES 1 2 or moreBoth Hour r 00-1 420 Motor Street � (280) 8801 (3381 S� .T� 2Z % 7L ��p 7 2OY6,7004 /Ot7 ©moo Highest r trops =c'it(8)11(160)1(112) I ED 103 5t y q�f � 7 7S � `� p y�� /o • NOTE Heavier lett turn movement from Major Street Included when LT -phasing is proposed ❑ WARRANT 2 - Interruption of Continuous Traffic 100% SATISFIED YES ❑ NO 0 80% SATISFIED YES 0 NO ❑ MINIMUM REOUIREMENTS X•walk Xing Major Street I (80% SHOWN IN BRACKETS) (841 117 7 U RU, R APPROACH 1 2 or more .-. LANES S-16? 1-2 - S L-3 t1-) (0.7 3 _y Z• I � Hour Both Apprehs. 750 525 900 630 Major Street (800) (4201 (720) (504) tS55 IZ27 y d (12 Ie .ZDYf ZZO 00 Highest Acomh75 53 70 16() Minor Street• 8 (42) (80) (56) 00 1 D3 �} Fq177 75- `NOTE Heavier lett turn movement from Major Street included when LT -phasing is proposed ❑ -- WARRANT 3 - Minimum Pedestrian Volume 100% SATISFIED YES ❑ NO ❑ 80% SATISFIED YES ❑ NO ❑ MINIMUM REQUIREMENTS (aow SHOWN IN 8RACXE S1 MIN. REOUiREMENT I DISTANCE TO NEAREST ESTABLISHED CRwLKI FULFILLED U R IYes ❑ No ❑ I 800 420 Both Appreft No Median I �� Major Street 480 (3361 ti 4Hour Raised volume4' 1000 1(800) 700 f7�� _Z Median (560) Pod's On Highest Volume 150OS Q X•walk Xing Major Street I (120) (841 117 7 _,-- IF MIDBLOCK SiGNAL PROPOSED ❑ MIN. REOUiREMENT I DISTANCE TO NEAREST ESTABLISHED CRwLKI FULFILLED 150 Feet I N/E_ ft S/W ft IYes ❑ No ❑ The satisfaction of a warrant Is not necessarily justification for a signal. Delay, congestion, confusion or other evidence of the need for right of way assignment must be shown. TS -10A 9-6 TRAFFIC SIGNALS AND LIGHTING Traffic Manual 12.1!86 Figure 9-1 B TRAFFIC SIGNAL WARRANTS WARRANT 4 - School Crossings Not Applicable ❑ See School Crossings Warrant Sheet WARRANT 5 - Progressive Movement SATISFIED YES ❑ NO s MINIMUM REQUIREMENTS DISTANCE TO NEAREST SIGNAL FULFILLED > 1000 It N S ft. E ft, W ft YES ❑ NOA ON ONE WAY ISOLATED ST. OR ST. WITH ONE WAY TRAFFIC SIGNIFICANCE AND ADJACENT SIGNALS ARE SO FAR APART THAT NECESSARY PLATOONING A SPEED CONTROL WOULD BE LOST • - - - - - - - - - - - - - - -- - - - - - - — - - — - - - - — - - — ON 2 -WAY ST. WHERE ADJACENT SIGNALS DO NOT PROVIDE NECESSARY PLATOONING & SPEED CONTROL PROPOSED SIGNALS COULD CONSTITUTE A PROGRESSIVE SIGNAL SYSTEM ❑ WARRANT 6 - Accident Experience SATISFIED YES ❑ NO ❑ • NO'I C. Lerr rurn accidents can be included when LT -phasing is proposed WARRANT 7 - Systems Warrant SATISFIED YES ❑ NO ❑ The satisfaction of a warrant is not necessarily justification for a signal. Delay, congestion, confusion or other evidence of the need for right of way assignment must be shown. Ts -108 i Traffic Manuel TRAFFIC SIGNALS AND LIGHTING 9-9 ,z-,sas Figure 9-1 E SCHOOL PROTECTION WARRANTS CAC DATE (� CHK DATE DIST CO RTE P.M. Major St: Minor St: Critical speed of approach traffic > 40 mph In built built up area of isolated community of C 10,000 pop. Critical Approach Speed mph Critical Approach Speed mph o RURAL (R) ❑ URBAN (U) FLASHING YELLOW SCHOOL SIGNALS SATISFIED YES ❑ NO ❑ (All ,parts must be satisfied) i Minimum Requirements PART A U R Vehicle Volume Each of 200 140 2 hours SATISFIED YES ❑ NO ❑ School Age Pedestrian Each of 40 40 Crossin Street 2 hours AND PART B Critical Approach Speed Exceeds 35 mph SATISFIED YES ❑ NO ❑ AND PART C Is nearest controlled crossing more than 600 feet away? SATISFIED YES ❑ NO ❑ SCHOOL AREA TRAFFIC SIGNALS SATISFIED YES ❑ NO ❑ (All parts must be satisfied) Minimum Requirements PART A U R Each of 500 350 Vehicle Volume 2 hours 9 Each of 100 70 9� �t� SATISFIED YES 13 NO School Age Pedestrians 2 hours Crossing Street'" peroday 500 350 AND PART B Is nearest controlled crossing more than 600 feet away? SATISFIED YES 13 NO 13 i I Traffic Manual TRAFFIC SIGNALS AND LIGHTING 4-7 12 -Isis Figure 0-1 C TRAFFIC SIGNAL WARRANTS WARRANT 8 - Cagibination of Wakrrants SATISFIED YES Q NO JZ REQUIREMENT I WARRANT IVI FULFILLED TWO WARRANTS 1 -MINIMUM VEHICULAR VOLUME SATISFIED 2 - INTERRUPTION OF CONTI UOUS TRAFFIC am 3 - MINIMUM PEDESTRIAN VOLUME I I YES ❑ NO Q WARRANT 9 - Four Hour Volume 2 or Approach Lanes One more SATISFIED'*-. YES JE NO Q BOM APProacn" , Malor Str+Nt 1 55 2- f Z2 -7q [70c/1 / Hipn.ac ApproaCAM Minor sttNt ! L,)3 I oo Hour Z-10 �f-cp 'Refer to Fig. 9-2A (URBAN AREAS) or Figure 9-28 (RURAL AREAS) to determine if this warrant is satisfied WARRANT 10- Peak Hour Delay, SATISFIED YES Q NO fB' 1. The total delay experienced for traffic on one minor street approach controlled by a STOP sign equals or exceeds four vehicle -hours for a one -lane approach and five vehicle -hours for a two-lane approach; and YES Q NO 2. The volume on the same minor street approach equals or exceeds 100 vph for one moving lane of traffic or 150 vph for two moving lanes; and YES )i� NO Q 3. The total entering volume serviced during the hour equals or exceeds 800 vph for intersections with four or more approaches or 650 vpn for intersections with three approaches YES .,�' NO Q WARRANT 11 - Peak Hour Volume SATISFIED- YES NO Q 2 or Approach Lanes One more Hour Both AoproaMM , M4W SUVO I I I855 1 [ HI9n6W Approach" or MinStr"t -Refer to Fig. 9-2C (URBAN AREAS) or Figure 9-20 (RURAL AREAS) to determine if this warrant is satisfied The satisfaction of a warrant is not necessarily justification for a signal Dewy, congestion, confusion or other evidence of the need for right of way assignment must be shown. TS -10C Is i 9--10 TRAFFIC SIGNALS AND LIGHTING Traffic Manual 12-1986 - z Q O ° w o fu w Z a o w z 4C O O ti cc F— J V) (n W W Q (Z W cc O cc 0 V) W J S U W O J a a O O Q O Q a J a 0 a _z > Q > ~ U X 0W0 N J LLJ0 [L I O LL O (n W Z z OZ �#c cr 0 z w J o a > z w Q Q Q .J w Z W / / 1 vs W = cc O 0 W W cc W ccQ O J _ Q O V O = W F.. Z Q LII Q O Ui Z cc CL d JN J O W W W C-4 N a J 0 x Z a J O m J Q w Q 0 o=~ O z Q z J ac LL.> O = 0 0 _En U. � ce 0— o co J a F— Z cc CO o -- z tY 0 U- 0 0 0 0 U7 - c7 N '" w v O z Q O ° w o fu w Z a o w z Q < ti cc F— J V) (n W W Q (Z W cc O cc 0 V) W J In J a a O O Q O a _z > Q U X nz O LL O Z f �#c QA F) ooa� o HdA—HOVOdddr 3wvniOA HJIN 133vis VONIW 9-12 TRAFFIC SIGNALS AND LIGHTING Traffic Manual �z•»as A O O O O O O Q LO Q V) N r HdA—movoaddr 3wmon HOIN 133HIS aoNiw CL W U O CL CL 1� m W Q 0 W W cc h - w 0 t UW Q C J CL O a Q O � J W � W O WF- Cn CC y O~ Z Q 2 � Qo 2 W Q = W � W 2 O W 1 'sao Q a ~ W > O Z Cr Z U a O O co CLX = Q Q �... J C/3 LU Uj O cc W M U1 J C a O O Q O Z a. Q 2 X L O ui O Z It Emmilm �■■111■ III.■ FA■ III �u O O O O O O Q LO Q V) N r HdA—movoaddr 3wmon HOIN 133HIS aoNiw CL W U O CL CL 1� m W Q 0 W W cc h - w 0 t UW Q C J CL O a Q O � J W � W O WF- Cn CC y O~ Z Q 2 � Qo 2 W Q = W � W 2 O W 1 'sao Q a ~ W > O Z Cr Z U a O O co CLX = Q Q �... J C/3 LU Uj O cc W M U1 J C a O O Q O Z a. Q 2 X L O ui O Z It 24 HOUR VOLUMES NEWPORT TNAFFIC STUDIES NEWPORT BEACH, CA STRELT : F'IRS'T ST LOCATION: YORBA - TUSTIN DATE: 11-21-89 ----------- 1'IME ;--------------- ;--------------- EAST WEST ;--------------- ----------- BOUND BOUND TOTAL 12:00------------- ;---------------'---------------'-- I I ' -----------; 63 69 132 i -----------I 48 I 2 7 75 I , 2:00 ;---------------;---------------;--------------- ' 16 11 ' 27-------------- I I I , ' 21 18 39 4:00 ;--------------- ;--------------- '--------------- I , ' I -----------; 47 34 81 ' 5:00 ;--------------- '---------------'--------------- I I ' ----------- 188 114 302 6:00 ;--------------- '--------------- I '--------------- 1 , ' 638 399 1,037 7:00 ;--------------- ;--------------- ;--------------- ----------- 725 1,144 1,869 • 8:00 ;--------------- '--------------- '--------------- ' ----------- 756 ; 1,054 11810 9:00 ;---------------'--------------- '---------------' -----------; 664 ; 708 1,372 • 10:00 ;---------------'---------------'` I --------------- ' ----------- 728 690 1,418, 11:00 ;--------------- '--------------- '---------------' AM ;-----------; 886 837 1,723 ; ----' 12.00 I , - - - - - - - - - - - - - - -: --------------- , --------------- --------------PM Pm ;-----------; 1,048 998 2,046 1:00 ;--------------- '--------------- � '--------------- I 1 ' -----------; 928 927 1,855 ; 2:00 ;--------------- '--------------- I ;--------------- , ' -----------' I 857 °47 1,704 00 -----------; 973 1,033 2,006 4:00 ;--------------- '---------------'--------------- I I ----------- 1,216 1,058 2,274 ; 5:00 ;--------------- '--------------- I '--------------- , , ' --------.----� 1,537 1,044 2,581 6:00 ----------- 878 769 1,647 7:00;---------------;---------------;---------------- '-----------' I , 561 491 1,052 ' 8:00 ------ I ----------- 439 366 805 9:00 ;--------------- '--------------- I I '--------------- ' -----------; 295 254 549 10.00 I I ----------- 203 168 371 11:00 ;--------------- ;--------------- '---------------` '-----------� I 125 111 236 12:00 -___________-_____=___________________________ -----------; 13,840 13,171 27,011 10 0 NEvvpowr TRAFFIC STUDIES 15 MINUTE COUNTS STREET : FIRST ST LOCATION:YORBA - TUSTIN AM EAST WEST TOTAL BOUND BOUND 13OUND ----- ----- ----- 247 20 20 40 20 17 37 12 15 27 11 17 28 14 10 24 7 6 13 10 3 13 17 8 25 6 4 10 4 4 8 2 3 5 4 0 4 5 3 8 4 4 8 5 9 14 7 2 9 - 5 3 8 7 3 10 18 10 28 17 18 35 19 15 34 30 24 54 60 30 90 79 45 124 85 65 150 156 72_'28 181 201 112 313 196 150 346 176 194 370 184 240 424 175 335 510 190 375 DGJ 214 305 519 199 295 494 182 247 429 161 207 368 156 180 X36 147189 59 336 188 180 368 173 159 332 185 169 354 170 159 329 175 182 357 198 180 378 108 176 364 234 221 j55 215 226 441 249 214 463 DATE 11-21-89 FM TIME EAST WEST BOUND 13OUND ----- 12:00 ----- 286 ----- 247 239 211 278 263 245 277 1:00 250 271 196 217 257 222 225 217 2:00 207 197 220 217 218 210 212 223 3:00 208 258 245 256 261 267 259 252 4:00 264 283 294 260 306 268 352 247 5:00 376 336 433 246 393 252 335 210 6: 00 258 212 225 216 204 181 191 160 7:00 186 149 138 130 132 119 105 °3 8:00 115 105 120 89 109 101 95 71 9:00 65 75 99 70 59 =�9 72 60 10:00 77 45 45 48 43 42 38 33 11:00 43 47 '1) 26 24 20 26 18 DIREC'T'IONAL PL:AIi ANALYSIS NEWPORT TRAFFIC STUDIES STREET: FIRST S'1 LOCATION: YORBA - TUSTIN I EASTBOUND AM PEAK HOUR ANALYSIS 04 : 45PM EASTBOUND WES'T'BOUND HOUR BEGINNING 07:45AM 07:30AM 376 268 433 190 335 393 214 375 1,554 199 305 0.90 182 295 PEAK HOUR TOTAL 785 1,310 PEAK HOUR FACTOR 0.92 0.87 PERCENT OF DIRECTION 5.67 9.95 PERCENT OF TOTAL 2.91 4.85 i NOON PEAK HOUR ANALYSIS EASTBOUND WESTBOUND HOUR BEGINNING 11:45AM 12:30PM 249 263 286 277 239 271 278 217 PEAK HOUR TOTAL 1,052 1,02E Y PEAK HOUR FACTOR 0.92 0.93 PERCENT OF DIRLCTIC�14 7.60 7.81 PERCENT OF lOThL 3.89 •.w 3.8.1 T%T T T/ T7!'lTTTl N A7 T\ I l7 r` T f' EASTBOUND WESTBOUND HOUR BEGINNING 04 : 45PM 04 : 1.5rTM 352 260 376 268 433 247 393 336 PEAK HOUR TOTAL 1,554 11111 PEAK HOUR FACTOR 0.90 0.83 PERCENT OF DIREC'T'ION 11.23 8.44 PERCENT OF TOTAL 5.75 4.11 DIRECTIONAL SPLIT 51.24 48.76 DATE: 11-21-89 TONAL TOTAL 07:45AM 565 519 494 429 2,007 0.89 7.43 TOTAL 12:15PM 450 541 522 521 2,034 0.94 7.53 04 : 45 -PM 599 712 679 645 2,635 0.93 9.76 r f 12:00 1:00 2: 00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 1:00 2.00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 - 11:00 12:00 "WL�ti'r OK'11,' 1'R.�1� F1 C[ 1 if S1'1:L,L'I' : VIRS1' S LOCA'T'ION : YORBA - TUSTI ti i� 132 75 Tim 27 ® 39 81 302 1,037 1,052 805 "1 UA'„L: -21-89 1 1 ji.r... 549 r 371 4 I� 236 r 1000 2000 3000 4000 5000 VEHICIL L:S HOUR Traffic Data Services, Inc. PEDESTRIAN COUNT N/S: B ST E/ W: 1ST ST CITY: TUSTIN DATE: 2/19/92 --------------------------------------------------------------------------------------------------- DAY: WEDNESDAY FILENAME: 0220501A 15 Min ---------- MID -BLOCK ------- Period I CROSSINGS I Beginning --------------------------------------------------------------------------------------------------- N -LEG S -LEG E -LEG W -LEG N -LEG S -LEG E -LEG W -LEG TOTAL 7:00 AM 2 2 2 0 0 0 0 0 6 :15 AM 6 2 6 0 0 0 0 0 14 :30 AM 13 2 17 0 0 0 0 0 32 :45 AM 11 2 11 0 0 0 0 0 24 76 8:00 AM 13 0 10 0 0 0 0 3 26 :15 AM 3 2 2 0 2 1 0 1 11 :30 AM 3 4 1 0 0 1 0 1 10 :45 AM 2 0 0 0 0 1 2 0 5 52 9:00 AM 2 0 1 0 0 0 0 0 3 :15 AM 3 0 0 0 0 0 0 0 3 :30 AM 5 2 2 1 0 1 0 0 11 :45 AM 4 4 2 0 0 0 0 0 10 27 10:00 AM 1 3 0 0 0 0 0 0 4 :15 AM 2 0 3 0 0 0 0 0 5 :30 AM 5 3 3 0 0 0 0 0 11 :45 AM 1 3 0 0 0 0 0 0 4 24 11:00 AM 2 1 1 0 0 3 3 0 10 :15 AM 0 6 3 0 0 0 0 0 9 :30 AM 4 5 5 0 1 1 0 0 16 :45 AM 4 7 10 0 0 0 1 0 22 57 --------------------------------------------------------------------------------------------------- VOLUMES= 86 48 79 1 3 8 6 5 236 COMMENTS: s In Traffic Data Services, Inc. PEDESTRIAN COUNT N/S: B ST E/ W: 1ST ST CITY: TUSTIN DATE: 2/19/92 --------------------------------------------------------------------------------------------------- DAY: WEDNESDAY FILENAME: 0220501P 15 Min ---------- MID -BLOCK ------- Period I CROSSINGS I Beginning --------------------------------------------------------------------------------------------------- N -LEG S -LEG E -LEG W -LEG N -LEG S -LEG E -LEG W -LEG TOTAL 12:00 NOON 0 3 0 0 0 6 0 0 9 :15 PM 0 1 1 0 2 3 0 4 11 :30 PM 0 1 1 1 2 1 0 0 6 :45 PM 4 4 4 1 2 4 0 2 21 47 1:00 PM 0 0 1 0 0 2 0 1 4 :15 PM 1 2 0 0 0 0 0 1 4 :30 PM 4 2 0 0 1 0 0 0 7 :45 PM 3 1 3 0 1 0 1 0 9 24 2:00 PM 0 2 1 0 0 0 0 0 3 :15 PM 23 5 22 0 2 0 0 5 57 :30 PM 26 5 23 0 0 0 0 0 54 :45 PM 17 3 35 0 0 0 0 0 55 169 3:00 PM 4 2 10 0 1 0 0 0 17 :15 PM 10 4 7 0 0 0 0 0 21 :30 PM 1 2 3 0 0 0 0 0 6 :45 PM 2 1 2 0 0 0 3 0 8 52 4:00 PM 2 4 4 0 0 0 0 0 10 :15 PM 3 1 3 0 0 0 0 0 7 :30 PM 4 1 0 0 0 1 0 0 6 :45 PM 2 4 3 0 0 0 G 0 9 32 --------------------------------------------------------------------------------------------------- VOLUMES= 106 48 123 2 11 17 4 13 324 COMMENTS: AT 12:20 PM A PEDESTRIAN CROSSED THE W -LEG MID -BLOCK 3 TIMES. TRAFFIC DATA SERVICES, INC. North Leg (SB) - 2/18/92 TO 2/20/92 East Leg (WB) - 2/18/92 MACHINE COUNT DATA 2/20/92 South Leg (NB) - 2/18/92 TO 2/20/92 West Leg (EB) - 2/18/92 TO 2/20/92 LOCATION - B ST 8 1ST HOURLY VOLUMES - s ir,► rnr,�r*,t r*,r ,t r,t*r,►yr**** PM ,Hr* TIME N. LEG E. LEG S. LEG W. LEG TOTAL TIME N. LEG E. LEG S. LEG W. LEG TOTAL (SB) (WB) (NB) (EB) (SB) (WB) (NB) (EB) 12:00 - 1:00 3 39 2 28 72 12:00 - 1:00 30 672 75 427 1204 1:00 - 2:00 4 20 4 14 42 1:00 - 2:00 69 628 103 404 1204 2:00 - 3:00 1 8 0 12 21 2:00 - 3:00 94 571 89 344 1098 3:00 - 4:00 0 9 0 12 21 3:00 - 4:00 53 569 69 414 1105 4:00 - 5:00 0 13 1 12 26 4:00 - 5:00 70 519 94 355 1038 5:00 - 6:00 4 36 2 52 94 5:00 - 6:00 100 585 93 456 1234 6:00 - 7:00 12 129 11 128 280 6:00 - 7:00 65 472 79 351 967 7:00 - 8:00 39 461 32 266 798 7:00 - 8:00 33 324 36 221 614 8:00 - 9:00 68 583 35 267 953 8:00 - 9:00 19 211 19 136 385 9:00 - 10:00 9 464 44 281 798 9:00 - 10:00 14 144 17 106 281 10:00 - 11:00 0 408 33 303 744 10:00 - 11:00 9 90 6 83 188 11:00 - 12:00 0 545 80 360 985 11:00 - 12:00 6 65 6 51 128 TOTALS 702 7,565 930 5,083 14,280 COUNT DATES ARE AS FOLLOWS - North Leg (SB) - 2/18/92 TO 2/20/92 East Leg (WB) - 2/18/92 TO 2/20/92 South Leg (NB) - 2/18/92 TO 2/20/92 West Leg (EB) - 2/18/92 TO 2/20/92 TRAFFIC DATA SERVICES, INC. MACHINE COUNT DATA LOCATION — B ST 8 1ST 15 MINUTE VOLUMES rtir ►,ityr,►tir**,r r*,r,r,e,►,ri►,►tir ,rw AM PM ,►�,t+tir TIME N. LEG E. LEG S. LEG W. LEG TOTAL TIME N. LEG E. LEG S. LEG W. LEG TOTAL (SB) (WB) (NB) (EB) (SB) (WB) (NB) (EB) 12:00 — 12:15 1 13 1 7 22 12:00 — 12:15 0 161 16 117 294 12:15 - 12:30 1 14 0 10 25 12:15 - 12:30 0 154 20 105 279 12:30 - 12:45 0 4 0 7 11 12:30 - 12:45 6 187 13 109 315 12:45 - 1:00 1 8 1 4 14 12:45 - 1:00 24 170 26 96 316 1:00 - 1:15 1 3 1 6 11 1:00 - 1:15 19 158 38 109 324 1:15 - 1:30 0 2 1 2 5 1:15 - 1:30 18 169 19 92 298 1:30 - 1:45 3 7 2 2 14 1:30 - 1:45 18 165 25 81 289 1:45 - 2:00 0 8 0 4 12 1:45 - 2:00 14 136 21 122 293 2:00 - 2:15 0 3 0 5 8 2:00 - 2:15 20 160 19 83 282 2:15 - 2:30 0 3 0 1 4 2:15 - 2:30 25 151 29 87 292 2:30 - 2:45 0 0 0 1 1 2:30 - 2:45 19 134 23 79 255 2:45 - 3:00 1 2 0 5 8 2:45 - 3:00 30 126 18 95 269 3:00 - 3:15 0 3 0 5 8 3:00 - 3:15 15 152 15 94 276 3:15 - 3:30 0 2 0 3 5 3:15 - 3:30 9 135 15 101 260 3:30 - 3:45 0 1 0 1 2 3:30 - 3:45 17 151 17 106 291 3:45 - 4:00 0 3 0 3 6 3:45 - 4:00 12 131 22 113 278 4:00 - 4:15 0 1 0 1 2 4:00 - 4:15 13 143 23 90 269 4:15 - 4:30 0 3 0 1 4 4:15 - 4:30 12 107 32 84 235 4:30 - 4:45 0 4 0 4 8 4:30 - 4:45 18 130 20 76 244 4:45 - 5:00 0 5 1 6 12 4:45 - 5:00 27 139 19 105 290 5:00 - 5:15 0 5 0 6 11 5:00 - 5:15 15 157 23 105 300 5:15 - 5:30 0 9 1 11 21 5:15 - 5:30 24 133 27 120 304 5:30 - 5:45 2 10 1 11 24 5:30 - 5:45 33 156 20 109 318 5:45 - 6:00 2 12 0 24 38 5:45 - 6:00 28 139 23 122 312 6:00 - 6:15 1 14 3 22 40 6:00 - 6:15 32 156 23 92 303 6:15 - 6:30 4 22 1 24 51 6:15 - 6:30 17 120 23 102 262 6:30 - 6:45 2 30 3 33 68 6:30 - 6:45 11 88 19 77 195 6:45 - 7:00 5 63 4 49 121 6:45 - 7:00 5 108 14 80 207 7:00 - 7:15 4 70 7 68 149 7:00 - 7:15 9 97 15 68 189 7:15 - 7:30 12 94 5 51 162 7:15 - 7:30 12 89 6 51 158 7:30 - 7:45 9 136 9 68 222 7:30 - 7:45 8 72 11 55 146 7:45 - 8:00 14 161 11 .79 265 7:45 - 8:00 4 66 4 47 121 8:00 - 8:15 18 174 16 74 282 8:00 - 8:15 5 62 6 38 111 8:15 - 8:30 21 141 5 59 226 8:15 - 8:30 3 53 8 41 105 8:30 - 8:45 18 134 10 63 225 8:30 - 8:45 7 46 1 28 82 8:45 - 9:00 11 134 4 71 220 8:45 - 9:00 4 50 4 29 87 9:00 - 9:15 9 125 10 78 222 9:00 - 9:15 5 41 4 31 81 9:15 - 9:30 0 106 12 68 186 9:15 - 9:30 7 36 5 31 79 9:30 - 9:45 0 103 9 66 178 9:30 - 9:45 2 41 3 21 67 9:45 - 10:00 0 130 13 69 212 9:45 - 10:00 0 26 5 23 54 10:00 - 10:15 0 87 9 85 181 10:00 - 10:15 5 30 2 24 61 10:15 - 10:30 0 95 8 59 162 10:15 - 10:30 3 23 1 21 48 10:30 - 10:45 0 103 6 87 196 10:30 - 10:45 0 16 2 17 35 10:45 - 11:00 0 123 10 72 205 10:45 - 11:00 1 21 1 21 44 11:00 - 11:15 0 121 19 85 225 11:00 - 11:15 1 16 1 22 40 11:15 - 11:30 0 136 19 84 239 11:15 - 11:30 2 13 3 15 33 11:30 - 11:45 0 137 27 89 253 11:30 - 11:45 1 24 2 8 35 11:45 - 12:00 0 151 15 102 268 11:45 - 12:00 2 12 0 6 20 TOTALS 702 7,565 930 5,083 14,280 TRAFFIC ' -a DATA SERVICES. INC. LOCATION CODE 02205.005 +�y..r,- ti r- - - -**A+o - LOCATION - IST @ B ST -EB RIGHT TURNS ONLY AVERAGED VOLUMES FOR - WEDNESDAY 2/19/92 TO THURSDAY 2/20/92 AM PM TIME EBR TOTAL TIME EBR TOTAL 12:00 - 12:15 2 - 2 12:00 - 12:15 7 - 7 12:15 - 12:30 0 - 0 12:15 -.12:30 6 - 6 12:30 - 12:45 2 - 2 12:30 - 12:45 7 - 7 12:45 - 1:00 0 4 - - 0 4 12:45 - 1:00• 11 31 - - 11 31 1:00 - 1:15 0 - 0 1:00 - 1:15 6 - 6 1:15 - 1:30 0 - 0 1:15 - 1:30 10 - 10 1:30 - 1:45 0 - 0 1:30 - 1:45 10 - 10 1:45 - 2:00 0 0 - - 0 0 1:45 - 2:00 12 38 - - 12 38 2:00 - 2:15 0 - 0 2:00 - 2:15 4 - 4 2:15 - 2:30 0 - 0 2:15 - 2:30 2 - 2 2:30 - 2:45 0 - 0 2:30 - 2:45 4 - 4 2:45 - 3:00 0 0 - - 0 0 2:45 - 3:00 4 14 - - 4 14 3:00 - 3:15 0 - 0 3:00 - 3:15 12 - 12 3:15 - 3:30 0 - 0 3:15 - 3:30 10 - 10 3:30 - 3:45 1 - 1 3:30 - 3:45 12 - 12 3:45 - 4:00 0 1 - - 0 1 3:45 - 4:00 4 38 - - 4 38 4:00 - 4:15 0 - 0 4:00 - 4:15 6 - 6 4:15 - 4:30 0 - 0 4:15 - 4:30 4 - 4 4:30 - 4:45 0 - 0 4:30 - 4:45 2 - 2 4:45 - 5:00 2 2 - - 2 2 4:45 - 5:00 2 14 - - 2 14 5:00 - 5:15 2 - 2 5:00 - 5:15 6 - 6 5:15 - 5:30 1 - 1 5:15 - 5:30 1 - 1 5:30 - 5:45 1 - 1 5:30 - 5:45 4 - 4 5:45 - 6:00 4 8 - - 4 8 5:45 - 6:00 6 17 - - 6 17 6:00 - 6:15 1 - 1 6:00 - 6:15 0 - 0 6:15 - 6:30 1 - 1 6:15 - 6:30 2 - 2 6:30 - 6:45 8 - 8 6:30 - 6:45 0 - 0 6:45 - x 7:00 6 16 - - 6 16 6:45 - 7:00 3 5 - - 3 5 7:00 - 7:15 8 - 8 7:00 - 7:15 0 - 0 7:15 - 7:30 4 - 4 7:15 - 7:30 2 - 2 7:30 - 7:45 1 - 1 7:30 - 7:45 0 - 0 7:45 - 8:00 11 24 - - 11 24 7:45 - 8:00 3 5 - - 3 5 8:00 - 8:15 3 - 3 8:00 - 8:15 3 - 3 8:15 - 8:30 1 - 1 8:15 - 8:30 0 - 0 8:30 - 8:45 4 - 4 8:30 - 8:45 0 - 0 8:45 - 9:00 6 14 - - 6 14 8:45 - 9:00 0 3 - - 0 3 9:00 - 9:15 4 - 4 9:00 - 9:15 0 - 0 9:15 - 9:30 2 - 2 9:15 - 9:30 1 - 1 9:30 - 9:45 2 - 2 9:30 - 9:45 5 - 5 9:45 - 10:00 6 14 - - 6 14 9:45 - 10:00 3 9 - - 3 9 10:00 - 10:15 3 - 3 10:00 - 10:15 1 - 1 10:15 - 10:30 4 - 4 10:15 - 10:30 0 - 0 10:30 - 10:45 0 - 0 10:30 - 10:45 4 - 4 10:45 - 11:00 5 12 - - 5 12 10:45 - 11:00 1 6 - - 1 6 11:00 - 11:15 0 - 0 11:00 - 11:15 1 - 1 11:15 - 11:30 4 - 4 11:15 - 11:30 1 - 1 11:30 - 11:45 6 - 6 11:30 - 11:45 0 - 0 11:45 - 12:00 5 15 - - 5 15 11:45 - 12:00 0 .2 - - 0 2 TOTALS 110 - 110 182 - 182 ART'S 292 - 292 **+.+t Traffic Manual TRAFFIC SIGNALS AND LIGHTING 9-1 CHAPTER 9 TRAFFIC SIGNALS AND LIGHTING Traffic Signals, Basic Information and Warrants 9-01 9-01.1 Introduction A traffic signal is an electrically powered traffic control device, other than a barricade warning light or steady burning electric lamp, by which traffic is warned or directed to take some specific action. The following types and uses of traffic signals are discussed in this chapter. Traffic Control Signals, Pedestrian Crossing Signals, Ramp Metering Signals, Flashing Beacons, Lane -use Control Signals, Traffic Control at Movable Bridges, Priority Control of Traffic Signals, Traffic Signals for One -lane, Two-way Facilities and Traffic Signals for Construction Zones. Traffic control signals are valuable devices for the control of vehicle and pedestrian traffic. However, because they assign the right of way to the various traffic movements, traffic control signals exert a significant influence on traffic flow. Traffic control signals, properly located and operated, should have one or more of the following advantages: 1. They provide for the orderly movement of traffic. 2. Where proper physical layouts and control measures are used, they increase the traffic handling capacity of the intersection. 3. They reduce the frequency of certain types of accidents, especially the right angle type. 4. Under favorable conditions, they can be coordinated to provide for continuous or nearly continuous movement of traffic at a definite speed along a given route. 5. They permit minor street traffic, vehicular or pedestrian, to enter or cross continuous traffic on the major street. 1-1991 Improper or unwarranted signal installations may cause: 1. Excessive delay. 2. Disobedience of the signal indications. 3. Circuitous travel of alternate routes. 4. Increased accident frequency. Experience shows that the number of right-angle collisions may decrease after the installation of signals, but the number of rear -end collisions may increase. The installation of signals may increase overall delay and reduce intersection capacity. Consequently, it is of the utmost importance that the consideration of a signal installation and the selection of equipment be preceded by a thorough study of traffic and roadway conditions made by an engineer experienced and trained in this field. Equally important is the need for checking the efficiency of a traffic signal in operation. This determines the degree to which the type of installation and the timing program meet the requirements of traffic. 9-01.2 Traffic Signal Warrants The justification for the installation of a traffic signal at an intersection is based on the warrants stated in this Manual. and in the Manual On Uniform Traffic Control Devices. The decision to install a signal should not be based solely upon the warrants, since the installation of traffic signals may increase certain types of collisions. Delay, congestion, approach conditions, driver confusion, future land use or other evidence of the need for right of way assignment beyond that which could be provided by stop signs must be demonstrated. See Section 4-03 of this Manual for stop sign warrants. 9-2 TRAFFIC SIGNALS AND LIGHTING When the 85th percentile speed of traffic on the major street exceeds 40 miles per hour in either an urban or rural area, or when the intersection lies within the built-up area of an isolated community having a population of less than 10,000, the location is considered rural. All other areas are considered urban. Figures 9-1, 9-2, 9-3 and 9-4 are examples of warrant sheets. Warrant Sheet 9-4 should be used only for new intersections or other locations where actual traffic volumes cannot be counted. The installation of a traffic signal should be considered if one or more of the warrants listed below are met: A. Warrant I - Minimum Vehicle Volume. The Minimum Vehicular Volume warrant is intended for application where the volume of intersecting traffic is the principal reason for consideration of a signal installation. The warrant is satisfied when for each of any 8 hours of an average day the traffic volumes given in the table below exist on the major street and on the higher -volume minor street approach to the intersection. Number of Vehicles per Vehicles per lanes for hour on hour on moving major street higher -volume traffic on (total of both minor -street each approach approaches) approach (one 420 200 direction only) Major St. Minor St. Urban Rural Urban Rural 1 1 500 350 150 105 2 or more 1 600 420 150 105 2 or more 2 or more 600 420 200 140 1 2 or more 500 350 200 140 The major street and the minor street volumes are for the same 8 hours. During those 8 hours the direction of higher volume on the minor street may be on one approach during some hours and on the opposite approach during other hours. Left turn movements from the major street may be included with minor street volumes if a separate signal phase is to be provided for the left Traffic Manual turn movement. The left turn volume in the highest direction may be added to the minor street volume on the highest approach. The major street volume should be reduced by this amount. B. Warrant 2 - Interruption of Continuous Traffic. The Interruption of Continuous Traffic warrant applies to operating conditions where the traffic volume on a major street is so heavy that traffic on a minor intersecting street suffers excessive delay or hazard in entering or crossing the major street. The warrant is satisfied when, for each of any 8 hours of an average day, the traffic volumes given in the table below exist on the major street and on the higher -volume minor street approach to the intersection, and the signal installation will not seriously disrupt progressive traffic flow. Number of Vehicles per Vehicles per lanes for hour on hour on moving major street higher -volume traffic on (total of both minor -street each approach approaches) approach (one 1 2 or more 750 direction only) Major St. Minor St. Urban Rural Urban Rural 1 1 750 525 75 53 2 or more 1 900 630 75 53 2 or more 2 or more 900 630 100 70 1 2 or more 750 525 100 70 The major street and the minor street volumes are for the same 8 hours. During those 8 hours the direction of higher volume on the minor street may be on one approach during some hours and on the opposite approach during other hours. Left turn movements from the major street may be included with minor street volumes if a separate signal phase is to be provided for the left turn movement. The left turn volume in the highest direction may be added to the minor street volume on the highest approach. The major street volume should be reduced by this amount. Traffic Manual TRAFFIC SIGNALS AND LIGHTING 9-3 C. Warrant 3 - Minimum Pedestrian Volume. A traffic signal may be warranted where the pedestrian volume crossing the major street at an intersection or mid -block location during an average day is: 100 or more for each of any four hours; or 190 or more during any one hour. The pedestrian volume crossing the major street may be reduced as much as 50% of the values given above when the predominant pedestrian crossing speed is below 3.5 feet per second. In addition to a minimum pedestrian volume of that stated above, there shall. be less than 60 gaps per hour in the traffic stream of adequate length for pedestrians to cross during the same period when the pedestrian volume criterion is satisfied. Where there is a divided street having a median of sufficient width for the pedestrian(s) to wait, the requirement applies separately to each direction of vehicular traffic. Where coordinated traffic signals on each side of the study location provide for platooned traffic which result in fewer than 60 gaps per hour of adequate length for the pedestrians to cross the street, a traffic signal may not be warranted. This warrant applies only to those locations where the nearest traffic signal along the major street is greater than 300 feet and where a new traffic signal at the study location would not unduly restrict platooned flow of traffic. Curbside parking at non -intersection locations should be prohibited for 100 feet in advance of and 20 feet beyond the crosswalk. A signal installed under this warrant should be of the traffic -actuated type with push buttons for pedestrians crossing the main street. If such a signal is installed within a signal system, it shall be coordinated if the signal system is coordinated. Signals installed according to this warrant shall be equipped with pedestrian indications conforming to requirements set forth in other sections of this Manual. ,•,", D. Warrant 4 - School Areas. See Chapter 10 of this Manual. E. Warrant 5 - Progressive Movement. The Progressive Movement warrant is satisfied when: 1. On a one-way street or on a street which has predominantly unidirectional traffic, adjacent signals are so far apart that the necessary degree of platooning and speed control of vehicles would otherwise be lost; or 2. On a two-way street, where adjacent signals do not provide the necessary degree of platooning and speed control and the proposed and adjacent signals could constitute a progressive signal system. The installation of a signal according to this warrant should be based on the 85th percentile speed unless an engineering study indicates that another speed is more desirable. The installation of a signal according to this warrant should not be considered where the resultant signal spacing would be less than 1,000 feet. F. Warrant 6 - Accident Experience. The Accident Experience warrant is satisfied when: - 1. Five or more reported accidents of types susceptible to correction by traffic signal control ' have occurred within a 12 -month period, each accident involving personal injury or property damage to an apparent extent of $500 or more; AND 2. Adequate trial of less restrictive remedies with satisfactory observance and enforcement has failed to reduce the accident frequency; AN 9-4 TRAFFIC SIGNALS AND LIGHTING 3. There exists a volume of vehicular traffic not less than 80% of the requirements specified in the Minimum Vehicular Volume Warrant or the Interruption of Continuous Traffic Warrant; AND 4. The signal installation will not seriously disrupt progressive traffic flow. G. Warrant 7 - Systems Warrant. A traffic signal installation at some intersections may be warranted to encourage concentration and organization of traffic flow networks. The systems warrant is applicable when the common intersection of two or more major routes has a total existing, or immediately projected, entering volume of at least 1,000 vehicles during the peak hour of a typical weekday, or each of any five hours of a Saturday and/or Sunday. A major route as used in the above warrant has one or more of the following characteristics: 1. It is part of the street or highway system that serves as the principal network for through traffic flow; 2. It includes Waal or suburban highways outside of, entering or traversing a city; or 3. It appears as a major route on an official plan such as a major street plan in an urban area traffic and transportation study. H. Warrant 8 - Combination of Warrants. In exceptional cases, a signal may be justified where no single warrant is satisfied but where Warrants 1 and 2 are satisfied to the extent of 80 percent or more of the stated numerical values. L Warrant 9 - Four Hour Volume Warrant. The Four Hour Volume Warrant is satisfied, when for each of any four hours of an average day, the plotted points representing the vehicles per hour on the major street (total of both approaches) and the corresponding vehicles per hour on the higher volume minor street approach Traffic Manual (one direction only) all fall above the curve in Figure 9-6 for the existing combination of approach lanes. When the 85th percentile speed of the major street traffic exceeds 40 miles per hour, or when the intersection lies within a built-up area of an isolated community having a population of less than 10,000, the four hour volume. requirement is satisfied when the plotted points referred to fall above the curve in Figure 9-7 for the existing combination of approach lanes. J. Warrant 10 - Peak Hour Delay Warrant. The Peak Hour Delay Warrant is intended for application where traffic conditions are such that for one hour of the day, minor street traffic suffers undue delay in entering or crossing the major street. The peak hour delay warrant is satisfied when the conditions given below exist for one hour (any four consecutive 15 -minute periods) of an average weekday. The peak hour delay warrant is met when: I. The total delay experienced by traffic, on one minor street approach controlled by a STOP sign, equals or exceeds four vehicle -hours for a one -lane approach and five vehicle -hours for a two-lane approach; AND 2. The volume on the same minor street approach equals or exceeds 100 vph for one moving lane of traffic or 150 vph for two moving lanes; AND 3. The total entering volume serviced during the hour equals or exceeds 800 vph for intersections with four or more approaches or 650 vph for intersections with three approaches. K. Warrant II - Peak Hour Volume Warrant. The Peak Hour Volume Warrant is intended for application where traffic conditions are such that for one hour of the day minor street traffic suffers undue delay in entering or crossing the major street. Traffic Manual TRAFFIC SIGNALS AND LIGHTING 9-5 The peak hour volume warrant is satisfied movement in order to increase the green when the plotted point, representing the vehicles time available for other phases. Refer to per hour on the major street (total of both Section 9-03.8 for the requirements of pro - approaches) and the corresponding vehicles per tected-permissive or permissive -protected hour on the higher volume minor street approach left turn operation. (one direction only) for one hour (any four percentage of buses and trucks. consecutive 15 -minute periods) of an average Protected left turn phases should be considered day, falls above the curve in Figure 9-8 for the where such alternatives cannot be utilized, and existing combination of approach lanes. one or more of the following conditions exist: When the 85th percentile speed of major street Changes in traffic patterns may result in a situation where a traffic signal is no longer traffic exceeds 40 miles per hour, or when the 1. Accidents. Five or more left turn intersection lies within a built-up area of an accidents for a particular left turn isolated community having a population of less movement during a recent 12 -month than 10,000, the peak hour volume warrant is period. satisfied when the plotted point, referred to above, falls above the curve in Figure 9-9 for the 2. Delay. Left -turn delay of one or more existing combination of approach lanes. vehicles which were waiting at the 9-01.3 Guidelines for Left -Turn Phases beginning of the green interval and are still remaining in the left turn lane after at least 80% of the total number of cycles for Since separate signal phases for protected left one hour. turns will reduce the green time available for other phases, alternate means of handling left 3. Volume. At new intersections where only turn conflicts should be considered first. estimated volumes are available, the fol - The most likely possibilities are: lowing criteria may be used. For a pre - 1. Prohibition of left turns. This can be done timed signal or a background -cycle - controlled actuated signal, a left turn vol - only if there are convenient alternate ume of more than two vehicles per ap- means of making the movement. Typical proach per cycle for a peak hour, or for a alternate means are: traffic -actuated signal, 50 or more left turning vehicles per hour in one direction a. A series of right and/or left turns with the product of the turning and con - around a block to permit getting to the flicting through traffic during the peak desired destination; or hour of 100,000 or more. b. Making the left turn at an adjacent 4. Miscellaneous. Other factors that might unsignalized intersection during gaps be considered, include but are not limited in the opposing through traffic. to: consistency of signal phasing with that 2. changes to eliminate the left at at adjacent intersections, impaired sight distance due to horizontal or vertical turn. An effective change would be a complete separation curvature, or where there is a large or a complete or percentage of buses and trucks. partial "clover leaf' at grade. Any of these, while eliminating left turns, requires 9-01.4 Removal of Existing Signals additional cost and right of way. 3. Provide protected -permissive or permis- Changes in traffic patterns may result in a situation where a traffic signal is no longer sive-protected left turn operation. The pro- justified. When this occurs, consideration should tected left turn interval may be prohibited be given to removing the traffic signal and during certain periods of the day to allow replacing it with appropriate alternative traffic only permissive intervals for left turn control devices.