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A tram track in its own right-of-way crossing a road can also be classified as a level crossing if it is signed with a crossbuck reading either "tramway crossing" or "railway crossing". Otherwise, it is considered a regular intersection and usually has either traffic lights or a give-way sign facing the road (see Gallery).
The sign should consist of two arms not less than 1.2 metres (3.9 ft) long, crossed in the form of an . The first model may have a white or yellow background with a thick red or black border. The second model may have a white or yellow background with a thin black border and an inscription, for example, "railroad crossing", "railway crossing", etc.
Other names include railway level crossing, [1] railway crossing (chiefly international), grade crossing or railroad crossing (chiefly American), [2] road through railroad, criss-cross, train crossing, and RXR (abbreviated). There are more than 100,000 level crossings in Europe and more than 200,000 in North America.
The time interval may be controlled by a level crossing predictor, an electronic device which is connected to the rails of a railroad track, and activates the crossing's warning devices (lights, bells, gates, etc.) at a consistent interval prior to the arrival of a train at a level crossing. [1]
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Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Mail. Sign in. Subscriptions; ... If a driver has an emergency and a railroad crossing is blocked ...