When is it permissible to overtake another vehicle on the nearside (left-hand side)?

Correct Answer

When the vehicle in front is signalling to turn right.

Explanation: You may overtake on the left when the driver in front has moved out and signalled their intent to turn right and you intend to go straight ahead ? provided there is enough room to do so safely and your path will not be obstructed by the swing of a large vehicle turning right.