The time interval may be controlled by a grade 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 grade crossing.
People also ask, what does a railroad crossing sign mean?
Crossbuck signs have been put at many public railroad crossings. This sign means look both ways, listen for and yield to trains. A number sign under the crossbuck indicates there is more than one set of tracks following the sign. Railroad/highway/side road intersection. 2.
What is a railroad crossing sign?
Passive signs and active traffic control devices are installed along roads that cross railroad tracks both on the approach and at the highway-rail grade crossing to regulate, warn or guide traffic. They alert drivers to the presence of railroad tracks and to the possibility of an approaching train.
What is a railway crossing?
A level crossing (also called a grade crossing, a railway crossing, or a railroad crossing) is a place where a railway line and a road meet each other on the same level. This means that the grades (the road and the track) are not separated by using a bridge or a tunnel. Usually, there are signs indicating the crossing.