Ride the Green Wave! Finally, a Comprehensive Strategy for Pr... by Steve Golia

Give pedestrians more time to cross at crossings and help them to cross streets as vehicles travel in platoons.Reduce the time cars wait at side roads.Be used on roads that intersect with other green waves.Reduce CO 2, NO x and PM 10 emissions from traffic.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. Typical Signal Schedule and Traffic Flow Diagram, North-South across Market (1929) From Signal Timing Schedule for Traffic Control Plan, June 15, 1929. The results showed using green wave signal setups on a network have the potential to:

In 2011, a study modeled the implementation of green waves during the night in a busy Manchester suburb ( Chorlton-cum-Hardy) using S-Paramics microsimulation and the AIRE emissions module. Under certain circumstances, green waves can be interwoven with each other, but this increases their complexity and reduces usability, so in conventional set-ups only the roads and directions with the heaviest loads get this preferential treatment. The coordination of the signals is sometimes done dynamically, according to sensor data of currently existing traffic flows - otherwise it is done statically, by the use of timers. In practical use, only a group of cars (known as a 'platoon', the size of which is defined by the signal times) can use the green wave before the time band is interrupted to give way to other traffic flows.

This allows higher traffic loads, and reduces noise and energy use (because less acceleration and braking is needed). A green wave occurs when a series of traffic lights (usually three or more) are coordinated to allow continuous traffic flow over several intersections in one main direction.Īny vehicle traveling along with the green wave (at an approximate speed decided upon by the traffic engineers) will see a progressive cascade of green lights, and not have to stop at intersections.

Ride the Green Wave! Finally, a Comprehensive Strategy for Pr... by Steve Golia