You are the first person to arrive at a crash scene. Hazard lights are on and the engine is off. What should you do next?

Call emergency services immediately.

Move the injured out of the vehicles.

Flag down passing drivers and ask them to help.

Give the injured something to drink.

You are driving through a flooded road. What is the correct way to proceed?

Drive slowly and keep a reasonable gap behind the vehicle ahead.

Turn on your hazard lights and maintain your normal speed.

Stay as close as possible to the vehicle ahead so you can follow its exact path.

Avoid using the brakes at any point while passing through the water.

You are driving toward a school and see a yellow light flashing beneath the school warning sign. What should you do?

Reduce speed and only proceed once you are certain no children are crossing.

Stop completely and wait for the flashing light to turn green.

Keep your current speed and sound the horn to warn pedestrians.

Accelerate to clear the crossing as soon as possible.

You hear a faint emergency siren while driving with music playing. What should you do first?

Turn down the music and scan all directions to locate the emergency vehicle.

Immediately steer onto the shoulder to clear the road.

Turn on your hazard lights and slow down sharply.

Roll down your window and turn right at the next junction.

A train is passing through a railway crossing ahead of you. What must you do?

Stop your vehicle at least 5 metres from the tracks and wait until the train has passed.

Slow down, sound your horn, and cross quickly behind the train.

Stop at the edge of the tracks and turn on your hazard lights.

Maintain your speed and cross only if no barrier is lowered.

What do I do at an unguarded railway crossing?

Slow down, stop at least 5 metres from the tracks, look both ways, and cross only when it is clearly safe. Never assume the crossing is unused.

How should I drive through a flooded road?

Drive slowly with a reasonable gap behind the vehicle ahead. After crossing, test your brakes gently — water on the brake pads reduces stopping power until they dry out.

What's the rule near a school zone with a flashing yellow light?

A flashing yellow light under a school sign is a caution signal, not a stop sign. Reduce speed and confirm no children are crossing before proceeding.

Hazards and emergencies, decoded.

On the Thai theory test, the safe answer in unusual situations is almost always 'slow down and don't pass.' At unguarded railway crossings stop at least 5 m from the tracks. For flooded roads, drive slowly with extra following distance. For emergency sirens, reduce cabin noise and locate the vehicle before reacting.

Practise hazards & emergencies Back to questions

Rule pattern

In doubt, slow down and don't pass.

Tunnels, bridges, school zones, level crossings, floods, fog, accident scenes — the cautious answer is the one the Thai theory test rewards. Slowing down, leaving room, and not overtaking is correct in nearly every edge case.

Tunnels, school zones, level crossings, breakdowns, floods. The questions that don't fit the everyday rules, gathered in one place.

Written by a farang who failed once — independent of the Thai Department of Land Transport. About FarangDrive.

Honest answers

Common hazards & emergencies questions

Real questions foreigners ask before the theory test. Practice content is based on common Thai driving-test topics and public guidance; it is not an official exam database.

What do I do at an unguarded railway crossing?
Slow down, stop at least 5 metres from the tracks, look both ways, and cross only when it is clearly safe. Never assume the crossing is unused.
How should I drive through a flooded road?
Drive slowly with a reasonable gap behind the vehicle ahead. After crossing, test your brakes gently — water on the brake pads reduces stopping power until they dry out.
What's the rule near a school zone with a flashing yellow light?
A flashing yellow light under a school sign is a caution signal, not a stop sign. Reduce speed and confirm no children are crossing before proceeding.

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