Colorado CDL Practice Test

When flashing red light signals are active at a railway crossing, the proper action is to stop completely when the lights are flashing. This protocol is in place to ensure the safety of both vehicle operators and pedestrians. The flashing red lights serve as a warning that a train is approaching, and stopping allows for adequate time to assess the situation and avoid a potentially dangerous encounter with a train, which can be lethal due to the size and speed of trains. Other choices imply that moving through the crossing, either by continuing to drive, yielding, or only stopping if a train is visible, could lead to serious risks. Trains can approach very quickly and may not be visible until it is too late. By stopping at the crossing when the lights are flashing, you are following the law and prioritizing safety over convenience.