Stop.
yes
Stop lights, also known as traffic lights or traffic signals, were first installed in London, England. The first traffic signal was installed in 1868 to to help control traffic.
Reflections in the car behind when you stop at traffic lights.
Often, because there are a lot of traffic lights around...
If the traffic lights are not working, the intersection is treated like a 4-way stop. That is, as if everyone has a stop sign.
stop at the stop line
If traffic lights are present but are not working (power failure) drivers are SUPPOSED to treat each intersection as if there is an all-directions stop sign. They rarely do that.
10am-8pm
They are called traffic lights or traffic signals. -------------------------------------------------------- *** 2nd Answerer Says: Some parts of the country call them stoplights (as opposed to go-lights or caution-lights) and there is a variation called "blinking lights". "Blinking lights can be blinking red in all four directions to designate a four-way stop or full-stop in two directions & cautionary slow-down (blinking yellow) the other two directions.
A driver must not stop in an intersection or on a road within 20 m of the nearest point of an intersecting road at an intersection with traffic lights. A driver must not stop in an intersection or on a road within 10 m from the nearest point of an intersecting road at an intersection without traffic lights.
because trams suck