Question: Can heavy vehicles over 7.5 tonnes MAM use the outside lane on motorways when one lane is closed, for instance, due to an accident or roadworks?
Answer: According to the Motorways Traffic (England and Wales) Regulations 1982, vehicles heavier than 7.5 tonnes MAM are generally not allowed in the outside lane of a motorway. However, they can use it if directed or permitted by a uniformed police officer or guided by official traffic signs.
So, suppose a lane is closed due to roadworks or an accident. In that case, heavy vehicles may use the outside lane if directed by traffic signs or given permission by the police under those specific circumstances.