How To Tell If The Traffic Light Will Change To Yellow Soon When Driving


Fresh Green Traffic Light 


A Fresh light is a green light you know for sure is going to stay green. The only way to be 100% certain is to see the pedestrian “Walk” signal advising the pedestrians that they may start walking across the crosswalk. Even then, there are a few rare exceptions to this rule.


Stale / AKA ‘Old’ green traffic light 




A Stale light is one that you think might change to yellow soon. Clues are: if the light has been green for a long time; if you see the pedestrian “don’t walk” signal; and if there are any vehicles waiting on the other street (on the traffic sensor) and/or pedestrians who have pressed the pedestrian buttons.


Traffic lights don’t just change randomly; they change due to demand from vehicles on the sensor or pedestrians.



Traffic Sensors on the pavement







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