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Question

Difficulty: HardTunnel Emergencies

While travelling through an illuminated road tunnel, an electrical failure causes your car's powertrain to cut out entirely. Unable to coast to a designated refuge area, you come to a stop against the nearside wall. Which action should you take next?

  1. A
    Place an advance warning triangle 45 metres behind your car on the carriageway before phoning recovery services on your mobile.
  2. B
    Stay inside your vehicle with your seatbelt fastened and wait for tunnel control cameras to detect your stationary car.
  3. Switch on hazard warning lights, turn off the engine, exit the vehicle, and use the emergency walkway to reach the nearest SOS telephone.Answer
  4. D
    Coast in neutral while attempting to restart the engine, then reverse along the kerb back toward the tunnel entrance.

Answer

Switch on hazard warning lights, turn off the engine, exit the vehicle, and use the emergency walkway to reach the nearest SOS telephone.
If your vehicle breaks down in a tunnel and cannot reach an emergency lay-by, you must switch on your hazard warning lights, switch off the engine, ensure all occupants exit the car safely from the nearside, and proceed along the emergency walkway to the nearest SOS telephone. The roadside emergency telephone is vital because it connects straight to the tunnel control centre, allowing operators to close lanes and dispatch assistance immediately.

Step-by-Step Solution

1
Assess vehicle status and make the vehicle visible
Hazard warning lights are activated and the engine is switched off to reduce fire and collision risk.
Alerts approaching drivers in enclosed, low-reaction environments and prevents engine overheating or fuel ignition.
2
Evacuate all occupants safely
Driver and passengers exit via nearside doors and stand on the raised safety walkway away from moving traffic.
Remaining inside a vehicle stopped in a tunnel lane carries a critical risk of injury from secondary collisions.
3
Summon help via official infrastructure
The nearest dedicated SOS emergency telephone point is used to contact tunnel control.
Tunnel emergency phones directly connect to the control room, instantly pinpointing the vehicle's exact position and triggering lane closures and variable speed limits.

Key Concept

Tunnel Breakdown and Emergency Communication Procedures
Estimated Time:1m 15s
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Topics

Tunnel Emergencies

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