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HomeMy WebLinkAboutC.C. Report #2 6-01-87 SignalREPORTS · TO: WILLIAM HUSTON, CITY MANAGER FROM: PUBLIC WORKS DEPARTMENT/ENGINEERING DIVISION SUBJECT: INFORMATIONAL REPORT - TRAFFIC SIGNAL AT NEWPORT AVENUE AND OLD IRVINE BOULEVARD The devel opers ,l Burnett-Ehline of Plaza Lafayette, have requested that a traffic signal be installed at the intersection of Newport Avenue and Old Irvine Boulevard. The westerly or fourth leg of this intersection would be the main driveway entrance to the Plaza Lafayette development. Burnett-Ehline further contends that the signal installation is required to attract a tenant within the proposed restaurant site. The City's Traffic Consultant has completed a traffic signal warrant study at the subject intersection. The following elements make up the warrants for traffic signals: ° Traffic volumes ° Accidents o Progressive movement The study indicates the intersection does meet the traffic volume warrants. It is estimated that only 200 cars per day would exit the Plaza Lafayette development from the driveway located opposite of Old Irvine Blvd. The intersection does not meet the warrants based upon traffic accidents. Past records indicate that accidents have been decreasing at the subject intersection. Traffic signal coordination could be accomplished between both the proposed Old Irvine Blvd. and existing Irvine Blvd. intersections with Newport Avenue with today's current technology. However, the 500 foot spacing between signalized intersections still violates recommended spacing gui delines. The estimated cost for the design and installation of the requested signal is $85,000.00. The estimated annual maintenance and energy cost for this traffic signal is $1,900.00. In the event it is determined that a traffic signal should be installed at this intersection, it is suggested that the requesting developer be obligated to participate in 25% of the cost of the installation ($21,250.00). The subject intersection does meet the traffic signal warrants, but the City's Consultant Traffic Engineer and staff recommend against said installation due to the limited number (200) of vehicles estimated to exit the driveway. BL:jm