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Green Wave Traffic Signals: Optimizing Urban Traffic Flow

Understand the principle of green wave traffic signals for coordinated signal timings to minimize stops and delays, ensuring efficient traffic flow for both vehicles and pedestrians in urban areas.

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Green Wave Traffic Signals: Optimizing Urban Traffic Flow

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  1. Green waveoftraffic signals ”Why on earth you can’t plan such a co-ordination for traffic signals, that you need not to stop every time in everywhere...”

  2. Principle of the green wavea good co-ordination of signals makes a green wave 40 s 80 s 45 km/h 40 s cycle time 0 s 500 m

  3. 500 m Green wave for both directionspossible only if the cycle time, speed and distance are OK 40 s 45 km/h 80 s 45 km/h 40 s cycle time 0 s

  4. 250 m 250 m Uncontrolled junction in the middlecrossing the street impossible because of the continuous flow 40 s 45 km/h 80 s 45 km/h 40 s cycle time 0 s

  5. 250 m 250 m Green wave stops twice in the secondary directionbut in the main direction the progression is good 120 s 40 s 60 s 80 s 40 s 45 km/h cycle time 20 s 0 s

  6. 250 m 250 m The green wave stops once in the both directionscompromizing the green wave progression 80 s 80 s 45 km/h cycle time 20 s 40 s 0 s

  7. 250 m 250 m Half of the cycle timeside street green is absolutely too short 45 km/h 40 s 40 s 40 s cycle time 40 s 45 km/h 15 s 0 s

  8. 250 m 250 m Slow down of the green wave ”in real life nobody will use such a speed” 22.5 km/h 80 s 80 s 22.5 km/h 40 s cycle time 0 s

  9. 250 m 250 m Green carpet ”the last vehicles of the green wave will cut of” 45 km/h 80 s cycle time 20 s 45 km/h 0 s

  10. 250 m 250 m What about the SYNCHRO optimization it brings minimum delays ands stops for vehicles 80 s 45 km/h cycle time 0 s

  11. ”A good but forced green wave” pedestrian must wait on refuge, vehicle must turn on right 40 s 80 s 45 km/h 40 s cycle time 45 km/h 0 s 250 m 250 m a right turn to the right only

  12. Green wave for Mannerheimintie in HelsinkiHere is the green wave, plan the opposite green wave, too 40 km/h 90 s 55 s cycle time 0 s Erottaja Lasipalatsi

  13. Timing of Traffic Signals... is making compromises and balance in different directions and periods between buses, cars, pedestrians, delivery vans, cyclists, trams lorries, roll-skaters, taxis, children and pensioners, blind and invalid people and other citizens’wishes and demands.

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