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  2. Signal timing - Wikipedia

    en.wikipedia.org/wiki/Signal_timing

    Coordination (the more correct term is progression) refers to the timing of the signals so that a "platoon" of cars traveling on a street arrives at a succession of green lights and proceeds through multiple intersections without stopping. A well coordinated signal system can enhance traffic flow, reduce delay and minimize pollution.

  3. Commuting to work in the US: facts and statistics - AOL

    www.aol.com/finance/commuting-us-facts...

    New Yorkers have the longest commute, with an average travel time of 33.2 minutes. South Dakotans have the shortest commute, with an average time of 17.4 minutes.

  4. Headway - Wikipedia

    en.wikipedia.org/wiki/Headway

    The units of measure also vary. The most common terminology is to use the time of passing from one vehicle to the next, which closely mirrors the way the headways were measured in the past. A timer is started when one train passes a point, and then measures time until the next one passes, giving the tip-to-tip time.

  5. Traffic light control and coordination - Wikipedia

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

    Part-time operation: Some traffic lights will not operate at night or when traffic is very light. Some may only operate at particular set times (e.g. during working hours of a major factory) or only during special events such as sports or exhibitions.

  6. Passenger car equivalent - Wikipedia

    en.wikipedia.org/wiki/Passenger_car_equivalent

    Passenger car equivalent (PCE) or passenger car unit (PCU) is a metric used in transportation engineering to assess traffic-flow rate on a highway. [1]A passenger car equivalent is essentially the impact that a mode of transport has on traffic variables (such as headway, speed, density) compared to a single car.

  7. Traffic optimization - Wikipedia

    en.wikipedia.org/wiki/Traffic_optimization

    The above method is primitive real-time signal optimization at best. This method will optimize one traffic signal at a time. However, in the real world, a motorist's commute involves driving through multiple signals. Thus, multiple traffic signals need to be collectively synchronized in order to be effective.

  8. Ramp meter - Wikipedia

    en.wikipedia.org/wiki/Ramp_meter

    Metered ramp on I-894 in the Milwaukee area. A Portland, Oregon ramp meter. A ramp meter, ramp signal, or metering light is a device, usually a basic traffic light or a two-section signal light (red and green only, no yellow) together with a signal controller, that regulates the flow of traffic entering freeways according to current traffic conditions.

  9. See where Austin ranks among cities in the U.S. with the ...

    www.aol.com/see-where-austin-ranks-among...

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