Rules of the Road Flashcards

What is the legal requirement for tyre tread depth on a car in Ireland?

Answer: Minimum 1.6mm across the central three-quarters of the tread width

Irish law requires a minimum tread depth of 1.6mm across the central three-quarters of the tyre's breadth and around the entire circumference.

When is it legal to sound your horn in Ireland?

Answer: Only to warn others of danger while driving

A horn may only be sounded to warn other road users of your presence when there is a danger. Using it to greet people, express frustration, or prompt others at lights is illegal.

What is 'aquaplaning' and how should a driver respond?

Answer: Tyres losing grip on a water film — ease off the accelerator gently, do not brake sharply

Aquaplaning occurs when tyres ride on a film of water and lose contact with the road. The correct response is to ease off the accelerator smoothly and avoid sharp braking or steering.

What is the correct action when you see a Garda directing traffic at a junction where signals show green?

Answer: Obey the Garda — their signals override traffic lights

A Garda's directions always override traffic lights and road signs. If a Garda signals you to stop despite a green light, you must stop.

What does a flashing green left-turn arrow at traffic lights allow?

Answer: Turn left with caution — oncoming traffic may still be moving

A flashing green arrow indicates a filter — you may turn in the indicated direction, but with caution, as oncoming traffic may not have stopped. Give way to pedestrians and crossing traffic.

What action must you take if your vehicle breaks down on a motorway?

Answer: Move to the hard shoulder, switch on hazard lights, and call for assistance

If your vehicle breaks down on a motorway, move to the hard shoulder immediately, switch on hazard lights, exit from the left-hand door, stand behind the barrier, and call for help.