Light Yellow/Green Road Signs. Fluorescent yellow and green road signs indicate upcoming pedestrian crossing areas like school zones, playgrounds, and bicycle lanes.

A: I was initially puzzled by this question. The reason many pedestrians think they can cross the street when the light is ...

International use of traffic lights . The Vienna Convention on Road Signs and Signals Treaty is the main reason why red, yellow, and green lights are used internationally. Ironically, the U.S and ...

Yellow road signs are mainly used to draw attention to diversions, information and instructions. ... However, instead of a blue background, the green indicates that this is a non-motorway route.

Not every licensed driver knows the meaning behind every symbol on their dashboard or every sign along the road. They might not even remember the difference between a yellow traffic line and a ...

The first traffic signals were not red, yellow and green. Here's why they are now.

Traffic lights have origins on the railways, but they weren't always red, yellow, and green. There was once a white light, and that was not such a great idea.

The yellow light didn’t enter the scene until the 1920s. William Potts, who was a police officer in Detroit, is credited with designing the first three- and four-way colored traffic lights.