Correct answer
At least 150 metres or a minimum six-second interval.
At least 150 metres or a minimum six-second interval. For vehicles with MAM no greater than 3,500 kg, including exactly 3,500 kg, the minimum is 100 metres or four seconds. The duty to keep enough distance to stop without collision still applies and may require more separation under the conditions. Overtaking is prohibited in a two-way tunnel with only one lane each way. Rules for a stationary queue differ from this moving-traffic case.
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50 metres in every condition.
At least 150 metres or a minimum six-second interval.
100 metres or four seconds because it is any lorry.
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