Question

Controls at railroad crossings include:

A. Crossing gates
B. Flashing green lights
C. Crossing guards
D.Sirens

Answer 1

Controls at railroad crossings include crossing gates, flashing green lights, crossing guards, and sirens.

Step-by-step explanation:

The controls at railroad crossings include:

1. Crossing gates: These are barriers that extend across the road to prevent vehicles and pedestrians from crossing when a train is approaching.
2. Flashing green lights: These lights are typically located near the crossing gates and flash to warn drivers and pedestrians of an approaching train.
3. Crossing guards: These are individuals who are stationed at the crossing to direct traffic and ensure the safety of pedestrians.
4. Sirens: While sirens are not commonly installed at railroad crossings, they may be used in some cases to alert drivers and pedestrians of an oncoming train.