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  2. Signal timing - Wikipedia

    en.wikipedia.org/wiki/Signal_timing

    An early traffic engineer Henry Barnes, who served as Commissioner of Traffic in many cities including Baltimore, Maryland and New York City, developed coordinated traffic signal timings, so that large amounts of traffic could be accommodated on major traffic arterials. Traffic signal timing is a very complex topic.

  3. Green wave - Wikipedia

    en.wikipedia.org/wiki/Green_wave

    Typical Signal Schedule and Traffic Flow Diagram, North-South across Market (1929) From Signal Timing Schedule for Traffic Control Plan, June 15, 1929. Attempted "green wave": 8.5mph on Market; 50 vara district: 10.5 mph north-south, 14.5 mph east-west; 100 vara district: 14.5mph north-south, 20.5mph east-west.

  4. Traffic light control and coordination - Wikipedia

    en.wikipedia.org/wiki/Traffic_light_control_and...

    In Australia and New Zealand, the terminology is different. A "phase" is a period of time during which a set of traffic movements receive a green signal - equivalent to the concept of a "stage" in UK and US. One electrical output from the traffic signal controller is called a "signal group" - similar to the UK and US concept of "phase".

  5. What are 'smart traffic lights' and why are they coming to ...

    www.aol.com/smart-traffic-lights-why-coming...

    Recognizing this, the Traffic Division is dedicated to optimizing our surface transportation system through effective traffic-signal timing. This approach not only minimizes congestion but also ...

  6. Traffic light - Wikipedia

    en.wikipedia.org/wiki/Traffic_light

    An LED 50-watt traffic light in Portsmouth, United KingdomTraffic lights, traffic signals, or stoplights – also known as robots in South Africa, [1] [2] Zambia, and Namibia – are signaling devices positioned at road intersections, pedestrian crossings, and other locations in order to control the flow of traffic.

  7. Split Cycle Offset Optimisation Technique - Wikipedia

    en.wikipedia.org/wiki/Split_Cycle_Offset...

    Split Cycle Offset Optimisation Technique (SCOOT) is a real time adaptive traffic control system for the coordination and control of traffic signals across an urban road network. Originally developed by the Transport Research Laboratory [ 1 ] for the Department of Transport in 1979, research and development of SCOOT has continued to present day.

  8. Traffic signal timing fueling frustration among drivers - AOL

    www.aol.com/news/traffic-signal-timing-fueling...

    The Valley driver wrote, "If the city's traffic engineers really wanted to help improving traffic flow, they could time signals on every street." Traffic signal timing fueling frustration among ...

  9. Three-phase traffic theory - Wikipedia

    en.wikipedia.org/wiki/Three-phase_traffic_theory

    Three-phase traffic theory is a theory of traffic flow developed by Boris Kerner between 1996 and 2002. [1] [2] [3] It focuses mainly on the explanation of the physics of traffic breakdown and resulting congested traffic on highways.