An articulated vehicle with a total length of 10 metres travels on an autovía outside a built-up area with four ordinary lanes in its direction, with no signs or exceptional circumstances changing their use. Which lanes may it use?

Correct answer

Normally the one furthest to the right, though the next one may be used in certain circumstances.

Combinations longer than seven metres normally use the rightmost lane on roads outside built-up areas with three or more lanes in their direction. They may use only the immediately adjacent lane to its left when traffic or road conditions make this advisable, without obstructing a following vehicle. Having four lanes does not allow free use of the three right-hand lanes or of all four. This is the ordinary rule; applicable signs and special measures must also be followed.