Traffic signals help manage traffic flow, allow pedestrians to cross and give cross-street traffic a chance to enter the intersection.
Pedestrian signals allow people to cross an intersection safely.
Traffic engineers install pedestrian indicators on traffic signal posts, using lighted words or symbols to indicate when it's safe to cross. New pedestrian signals use symbols which make it easy to understand, even for those who don't read or speak English. Cross the street as quickly as possible. Be alert and defensive. Avoid crossing where signs tell you it is restricted or prohibited.