the benefit of highway traffic lights

Traffic light - Wikipedia, the free encyclopedia
For the type of political coalition, see Traffic light coalition. . for the benefit of people with red-green color blindness, and "green" lights in many areas are in . type of traffic light used to manage traffic on a multi-way road, highway or tollway.
http://en.wikipedia.org/wiki/Traffic_light

4A-4D Highway Traffic Signals
Dec 3, 2000 . Definitions Relating to Highway Traffic Signals................................4A-1 . Advantages and Disadvantages of Traffic Control Signals.................4B-2 .
http://mutcd.fhwa.dot.gov/pdfs/millennium/12.18.00/4.pdf

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    • Traffic Signals - Arizona Department of Transportation
      ITD - Highways Home Page · Home Page . Foreword; Advantages Of Signals; Disadvantages Of Signals; Unjustified Signals; Credits. FOREWORD. Traffic signals are electrically operated traffic control devices which alternately direct traffic to .
      http://www.azdot.gov/highways/traffic/Signal.asp

      Intelligent Transportation Systems for Traffic Signal Control - ITS ...
      Some examples of the benefits of using ITS applications for traffic signal control . ACS-Lite is a scaled-down version of the Federal Highway Administration's .
      http://ntl.bts.gov/lib/jpodocs/brochure/14321.htm

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