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A green traffic light means you may go, but only if safe to do so. If there is other traffic or pedestrians in the way, you may NOT go until safe, even if you "have the green light." Even if the other traffic or pedestrians are violating the law, you cannot go until it is safe.
A "Green Wave" is a sensor on the traffic lights that allows the main flow of traffic to continue to have a green light unless another car is to pull up in the other direction then the light would change to let the other car go.
If the green arrow shows for the direction you want to turn then you obey the green arrow, the red light is for all other traffic. The green arrow basically overrules the red light for the direction of the arrow.
merging
Traffic lights in California will always cycle green-yeelow-red. If the light goes green to red with no yellow, you have a defective traffic light. You will need to monitor the traffic light with a video camera through several cycles to show the court the defect. Other than that there is no defense. Is going thru a yellow light a violation?
Creating a hazard
Don't look; I'm changing
You may turn in the direction the arrow is indicating. No other maeuvers are allowed.
You may turn in the direction the arrow is indicating. No other maeuvers are allowed.
You may turn in the direction the arrow is indicating. No other maeuvers are allowed.
You may turn in the direction the arrow is indicating. No other maeuvers are allowed.
A traffic light is placed at an intersection of two or more roadways. Each approach of the intersection has at least one signal head with three bulbs (red, yellow, and green) facing it. Cars approaching the intersection can go through it if the light facing them is green and cannot go through it when the light is red. Signals go from green to yellow (to slow down for the red) to red and then back to green. Only one of the two roads at a signalized intersection can have a green light at one time and the traffic on the other road must wait for the light facing them to turn green.