A traffic light you seen change to green
There is no specific length of time for a red light. Traffic engineers make that determination according to the flow of traffic.
There is no exact time simply because no 2 intersections are the same, there are factors that change this time such as: How much traffic goes through the intersection on one direction?
"Under a traffic light" implies that it is at an intersection. You are not allowed to change lanes while passing trhough an intersection, you must maintain the lane you are travelling in.
There is no exact time simply because no 2 intersections are the same, there are factors that change this time such as: How much traffic goes through the intersection on one direction?
False
Fresh green light
A green light usually last a minute to two minutes.
Traffic lights typically use sensors such as induction loops, infrared sensors, and cameras. These sensors help detect the presence of vehicles and pedestrians at the intersection, allowing the traffic light to change based on the traffic flow.
Generally, traffic lights take about 5-10 seconds to change to a different color. This timing can vary depending on the intersection and the traffic light's programming.
The introduction of the traffic light in 1920 helped regulate traffic flow, reduce accidents, and improve road safety. It became a standard feature in urban planning and transportation systems around the world, significantly influencing traffic management and shaping modern city infrastructure.
about 3hours, if traffic is light