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Incorrect!

What should you do when you're driving through a tunnel in heavy traffic?

Stay close to the vehicle in front to reduce congestion
You selected this answer
Switch off your dipped headlights to reduce dazzle
Closely follow the tail lights of other vehicles
Follow the instructions given by variable message signs
Correct answer

DVSA theory test explanation

In congested tunnels, you should always obey the instructions given by variable message signs and tunnel officials. Listen out for radio announcements and observe the road signs and signals. Keep your distance from the vehicle in front.

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