police had to steer traffic.
The traffic light as we know it today was invented by Garrett Augustus Morgan, the son of former slaves. Before that there was a gas lantern signal light in England, but that was before automobiles. There was a railroad light version later, but it wasn't like our modern version. If you didn't mean "traffic light" then i don't know.
they didnt have traffic lights back then sorry :/
Before helicopters, the public was never informed on traffic accidents that created heavy backups. Before helicopters, people with serious injuries did not get to the hospital as fast.
before you bella, my life was like a starless night. ~Edward Cullen
treat it like a 4way stopp
traffic polution is like normal pollution though it is sound, light and chemical pollution
Traffic lights are illuminated. They emit light to signal drivers with colors like red, yellow, and green. The light source within a traffic light enables it to be visible during different times of the day and in various weather conditions.
I would have to say that it must have been very dark times
garret Morgan invented the traffic light, gas mask and man other
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.
When you come up to a red light, you have to stop and wait for the light to turn green. If there are multiple lanes, like one that goes straight and one for left turns, you should check for traffic behind you and get in the lane you need to be in if it can be done safely before you come to the light and stop.
Traffic light poles can vary in weight depending on their size and material, but on average they weigh between 100-300 pounds. The weight can also be influenced by factors such as the type of traffic light, the materials used in construction, and any additional features like cameras or sensors.