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. These signs and devices also provide a safety message and remind the driver of the laws regarding highway-rail grade crossings. What follows is a list of some of the various signs and devices that you will see in connection with highway-rail grade crossings.

Passive Signs: Signs that alert motorists that they are approaching a highway-rail grade crossing.

Active Signs: Electronic devices that warn the motorist of the approach, or presence, of rail traffic at grade crossings