Missouri CDL General Knowledge study materials
Missouri CDL General Knowledge study resources

Missouri CDL General Knowledge: Railroad-Highway Crossings

Missouri CDL General Knowledge · Work through your exam, one topic at a time.

All guide sections

Railroad-Highway Crossings

What the exam tests

Railroad-Highway Crossings tests approach speed, clearance judgment, and action if a vehicle stalls on the tracks. The exam emphasizes that trains cannot stop quickly.

Core rules

  • Approach at a speed that lets you stop; turn off distractions, open a window, look and listen.
  • Never stop on tracks; ensure there is room beyond the crossing before you start across.
  • Obey gates and lights. If the gate is down, wait even if no train is visible.
  • If stuck, get out, move away from the vehicle and tracks, and call the emergency number posted at the crossing.
  • Watch trailer overhang and low ground clearance; a long combination can still be on the tracks when the cab has cleared.

Worked example

Traffic backs up beyond a crossing. The driver stops before the tracks, not on them, even if the traffic light ahead is green. The reasoning is simple: the green light does not guarantee space beyond the crossing, and stopping on the rails leaves no escape if a train appears.

Traps that cost marks

Racing a train, stopping on tracks, assuming signals work, and forgetting that the trailer may still block the crossing. Another error is waiting until the gate lowers before deciding to stop.

Key idea

Never enter a crossing unless you can clear it completely.