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Yes they do.
No, it doesn't
it can stop accidents by letting people across and is visibe from in the car to road
the difference is that you have to wait to cross a pelican crossing, but a school crossing, someone just stands in the middle of the road and stops cars and lets you cross quicker. Pelican crossing: traffic lights for pedestrians and vehicles; button-operated. http://stretsmartsigns.com
Active crossing. A highway-railroad grade crossing that has flashing lights with or without crossing gates is called an "active railroad crossing". This is because it is activated automatically by the approach of a train, and shut off as the train passes. In the US, there are crossings that may use flashing lights that are not activated automatically, but nearly all were retired in the US by 1990. The watchman controlled flashing light grade crossing in southern New Jersey made headlines when it was retired in 1990, as the last of its kind in the country.
it means there is a pedestrian crossing
Crossing a street against a light, or crossing at a place that is not designated a crosswalk.
Tram, an electric rail transport vehicle also known as a trolley or streetcar. Some modern light rail systems are also referred to as trolleys.Trolleybus, an electric busTourist trolley, a bus built to resemble a trolley carTrolley (horse-drawn), a goods vehicle with a platform body with four small wheels of equal size, mounted underneath it, the front two on a turntable undercarriageNeighborhood Trolley, the streetcar scale-model in the PBS children's television series Mister Rogers' NeighborhoodRail push trolley, a small vehicle for inspecting rail lines
When ever the red lights flash at railroad crossings you should stop at least 15 feet from the nearest rail. Flashing red lights at a railroad crossing are essentially the same as a red light at an intersection. You can be cited for not stopping in either situation. When it comes to railroad crossings it is much better to be safe than sorry. When a train hits a car the casualty rate to the occupants of the car is almost 100 percent.