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HomeMy WebLinkAboutOB 1 SPEED ZONE 09-07-82OLD BUSINESS AGENDA ~TE AUGUST 25, 1982 Inter-Corn TO: WILLIAM HUSTON, CITY MANAGER FROM: NORMAN HOWER, TRAFFIC ENGINEER SUBJ£¢T:SPEED ZONE - MAIN STREET AND BRYAN AVENUE RECOMMENDATION: That the Tustin City Council, at their meeting of August 30, 1982, introduce the attached Ordinance which revises the prima facie speed limit on Main Street and Bryan Avenue as indicated below: MAIN STREET West city Limits to Williams St. Williams St. to "B" St. "B" St. to Prospect Ave. Prospect Ave. to Newport Ave. Newport Ave. to Bryan Ave. 40 MPH 40 MPH 30 MPH 40 MPH 40 MPH BRYAN AVENUE Main St. to Red Hill Ave. Red Hill Ave. to Farmington Rd. Farmington Rd. to Browning Ave. Browning Ave. to Myford Rd. 40 MPH 40 MPH 40 MPH 45 MPH BACKGROUND: As requested, an engineering and traffic survey has again been conducted on Main Street from the west city limits to Bryan Avenue and Bryan Avenue from Main Street to Myford Road. The existing speed limit on Main Street is 25 MPH and Bryan Avenue from Main Street to Browning is also 25 MPH. From Browning Avenue to Myford Road, the speed limit on Bryan Avenue is 40 MPH. While the 85th percentile speeds of each road section studied was the same or slightly higher (with the exception of one) than the previous study, the recommended speed limits have remained the same. The section of Main Street between B Street and Prospect Avenue could not be studied due to construction in the area and the section between Prospect Avenue and Newport Avenue showed a decrease of 2 MPH due to the same reason. The following are the recommended speed limits for the listed section of roadway: MAIN STREET RECOMMENDED SPEED LIMITS ROAD SECTION West city limits to Williams St. Williams St. to B St. "B" St. to Prospect Ave. Prospect Ave. to Newport Ave. Newport Ave. to Bryan Ave. SPEED LIMIT 4O 40 3O 4O 4O BRYAN AVENUE Main St. to Red Hill Ave. Red Hill Ave. to Farmington Rd. Farmington Rd. to Browning Ave. Browning Ave. to Myford Rd. 40 40 4O 45 The previous radar study indicated that the section between B Street and Prospect Avenue has an 85th percentile of 40 MPH. Due to the narrowing of the lanes, considerable parking, and pedestrians crossing at various locations other than the intersections, it is recommended that this section be zoned at 30 MPH. The 85th percentile for the section of roadway between Browning Avenue and Myford Road would indicate a posted speed limit of 55 MPH. It is recommended that this section be posted for 45 MPH due to the lack of a shoulder and the large drainage ditch on the north side of the roadway, which would force a stalled vehicle to block the westbound travel lane and would be unexpected by the motorist. The radar studies conducted on these streets are a measure of the prevailing speeds existing at the time of the study. In order to be enforced by radar, the California Vehicle Code limits the setting of the speed limit to the 85th percentile of the existing speeds, unless conditions are present that are not readily apparant to the drivers. The speed of 1,708 vehicles was checked by radar between the west city limits and Browning Avenue during a total time of 11 hrs. and 50 minutes and of these vehicles, a total of 22, or 1.29% were traveling within the existing 25 MPH posted speed limit. A review of the accident records within the limits of this study has not indicated an abnormally high percenage of accidents normally associated with excessive speed. The recommended speed limits will give consistant speed limits for Main Street and Bryan Avenue within the city limits in accordance with the California Vehicle Code and will be enforceable with the use of radar. NORM HOWER TRAFFIC ENGINEER db ROAD SECTION EXISTING VEHICLE SPEED (BY RADAR) CR'ITICAL SPEED E.B. W.B. MAIN STREET Lyon St. to Williams St. Williams St. to Pacific St. Pacific St. to B St. Prospect Ave. to Newport Ave. Newport Ave. to Bryan Ave. BRYAN AVENUE Main St. to Red Hill Ave. Red Hill Ave. to Farmington Rd. Farmington Rd. to Browning Ave. Browning Ave. to Myford Rd. ROAD SECTION 42 42 44 44 40 42 38 38 42 42 44 44 42 42 42 42 56 56 EXISTING . POSTED SPEED LIMITS SPEED LIMIT MAIN STREET East city limits to Williams St. Williams St. to B St. B St. to Prospect Ave. Prospect Ave. to Newport Ave. Newport Ave. to Bryan Ave. BRYAN AVENUE Main St. to Red Hill Ave. Red Hill Ave. to Farmington Rd. Farmington Rd. to Browning Ave. Browning Ave. to Myford Rd. ROAD SECTION 25 25 25 25 25 25 25 25 40 REC~NDED SPEED LIMITS SPEED LIMIT MAIN STREET East city limits to Williams St. Williams St. to B St. B St. to Prospect Ave. Prospect Ave. to Newport Ave. Newport Ave. to Bryan Ave. BRYAN AVENUE Main St. to Red Hill Ave. Red Hill Ave. to Farmington Rd. Farmington Rd. to Browning Ave. Browning Ave. to Myford Rd. 40 40 30 40 40 40 40 4O 45 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2O 21 22 23 24 25 26 27 ORDINANCE NO. AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF TUSTIN, CALIFORNIA, REVISING PRIMA FACIE SPEED LIMITS ON CERTAIN STREETS. 1. It is hereby determined that the speed permitted by State law as applicable upon the following streets is other than is reasonable and it is hereby declared that the prima facie speed limit shall be as herein set forth on those, streets, or parts of streets, herein designated when signs have been erected giving notice thereof. 2. The prima facie speed limit for vehicular traffic on the following streets, or portions of streets, is hereby established as hereinafter set forth, effective when signs have been erected giving notice thereof. 3. Provided, further, however, that in any instance where the prima facie speed limit as fixed by the vehicle code of the State of California is less than the prima facie speed limit hereby determined and fixed, then the prima facie speed limit which is provided in the Vehicle Code shall be applicable. 4. The streets, or portion of streets within the Tustin City limits, affected and the declared prima facie speed limit shall be as follows: NAME OF STREET OR PORTION AFFECTED Main St. from west City limits to "B" St. Main St. from "B" St. to Prospect Ave. Main St. from Prospect Ave. to Bryan Ave. Bryan Ave. from Main St. to Browning Ave. Bryan Ave. from Browning Ave. to Myford Rd. DECLARED PRIMA FACIE SPEED LIMIT 40 MPH 30 MPH 40 MPH 40 MPH 45 MPH PASSED AND ADOPTED at a regular meeting of the City Council of the City of Tustin, California, held on the~ day of , 1982. ATTEST: MAYOR CITY CLERK 28 - :1 . I i ~ 0 I I