If you are asking what the height of a traffic light above the street is, that is usually set by the specifications of the individual states or municipalities, and usually designed to be high enough to clear the tallest oad that can be lawfully transported on the highways without special permit.
The traffic light was made in 1823.
red light is used in traffic lights because red light has a "longer wavelength" than other colours
the traffic light was invented because back in the day people didnt know what to do when driving and cars were new and to prevent people from crashing and accidents they invented the traffic light
light source
Red=stop red flashing= light is broken, use your judgement in crossing.
Traffic lights are typically hanging fourteen feet from the ground. The light itself will be about forty one inches tall.
The opposite would be "light traffic".
If a traffic light breaks most cities will assign a traffic cop to regulate traffic until the light can be fixed.
The traffic light was made in 1823.
A traffic light you seen change to green
Yes. That is why they are called traffic lights.
your not so bright
The first traffic light was invented in December 10, 1868. The electric traffic light was invented in 1912. The Automatic Traffic light was invented in 1927.
Don't look; I'm changing
It is usually on the bottom of the traffic light.
J.P. Knight is the person who invented the traffic light. J.P. Knight invented the traffic light in 1868 in an effort to prevent fatalities on the roads.
inventor of the traffic light