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lab 4 overview

lab 4 overview - CEE 4600 Lab#4 Signal Warrants Traffic...

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1 CEE 4600 Lab #4 Signal Warrants Traffic Control Signals • Definition – Any signal by which traffic (including pedestrians, bicyclists, vehicles, animals, streetcars, etc.) is alternately directed to stop and permitted to proceed
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2 Potential Advantages and Disadvantages • Orderly movement of traffic • Increased capacity of the intersection • Reduced number of crashes • Interrupt heavy vehicular traffic to allow other modes to use the facility • Signals can be improperly designed, ineffectively placed, improperly operated, or poorly maintained • Increased use of other routes to avoid congestion • Increased number of crashes (rear-end) Justifying Traffic Control Signals • An engineering study of traffic conditions, pedestrian characteristics & physical characteristics of the location is required • This study shall include an analysis of traffic signal warrants relating to • The satisfaction of a traffic signal warrant or warrants shall NOT in itself require the installation of a traffic signal
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