Green wave

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.

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.

Copenhagen,[4] Amsterdam,[5] San Francisco,[6] and other cities may synchronize traffic signals to provide a green light for a flow of cyclists.

Frederiksberg, a part of Copenhagen, the capital of Denmark, has implemented a green wave for emergency vehicles to improve the public services.

'Guaranteed Green Wave', which communicated the notion of speed, limited delays and open track blocks to potential customers choosing between train and automobile travel, and was featured prominently in promotional materials ranging from posters to radio jingles.

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.