WebFlashing signals may be used at intersections where emphasis of the stop requirement is needed, but conditions do not justify installing a traffic control signal. They may also be used at intersections where sight distance is severely restricted. WebYellow: When you see this, you have to slow down and come to a stop before the light turns red. Green: When you see this, you don’t have to stop or slow down. Continue to move forward. Crosswalk lights Red Hand: DO NOT walk across the street if you see this.

Signs - PennDOT Driver & Vehicle Services

WebThe flashing arrow signs have a guiding effect on traffic. For example, maintenance vehicles on highways mainly control traffic flow and avoid congestion. The led arrow for truck is also a status symbol, which can make people aware of avoidance. WebRapid flashing rectangular beacons, or standard flashing sign beacons are used to slow traffic and improve safety by bringing greater driver attention to the posted traffic signs. The flashing beacons can be used … chuck nalley grading

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