Guidance summary
Leave a tunnel fire by the safe available route
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For a breakdown, stop left if possible, use hazards and switch off the engine. Get help through an SOS point without crossing traffic; call 999 if unable to exit. If your vehicle catches fire, drive out only when safe and possible. Otherwise stop, switch off and evacuate promptly along the signed route. Help passengers leave together and obey tunnel operators; never drive into smoke or fire ahead.
Source: Leave a tunnel fire by the safe available route
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