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CONTRACT NO. K-1213-207: A CONTRACT BY AND BETWEEN THE CITY OF NORMAN AND GARVER ENGINEERING L.L.C., IN THE AMOUNT OF $32,000 TO PROVIDE ENGINEERING SERVICES FOR THE DEVELOPMENT OF TRAFFIC SIGNAL TIMING PLANS FOR THE ROBINSON STREET TRAFFIC SIGNAL INTERCONNECT SYSTEM.
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BACKGROUND: The City of Norman currently operates twelve traffic signal interconnect systems along its busier arterial roadways. These systems promote the continuous movement of traffic along major arterials, minimize overall delay and reduce traffic collision rates (~30% reduction nationally).
While some traffic signals fall into multiple corridors, the twelve interconnect systems in Norman include traffic signals along the following corridors:
* State Highway 9 (Ten Signals)
* Lindsey Street (SH 74A) (Eighteen Signals)
* Boyd Street (Eight Signals)
* Main Street (Sixteen Signals)
* Gray Street (Six Signals)
* Alameda Street (Six Signals)
* Robinson Street (Fourteen Signals)
* Tecumseh Road (Six Signals)
* Classen Boulevard/12th Avenue East (US 77/SH 77H) (Thirteen Signals)
* Classen Boulevard/Porter Avenue (Eight Signals)
* 24th Avenue West (Eight Signals)
* 36th Avenue West (Five Signals)
The objective of a coordinated signal system is to provide continuous movement of vehicles and/or to minimize delay along an arterial or along a network of major streets.
DESCRIPTION: One of the most important elements of an efficient traffic signal coordinated system is the traffic signal timing plan. The goal is to have a timing plan that is based on the prevailing traffic conditions.
Several factors are considered in the formulation of the timing plan. They include the degree to which traffic characteristics change in amount or directional distributions throughout the day, the quality of progressed movement that can be provided by the various timing plans, the timing plan transition method used and the cycle lengths involved. Most systems in Norman have up to f...
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