From memory this part of the M1 is a 'smart motorway', which means that the hard shoulder is sometimes for breakdowns, but sometimes a running lane. The speed

From memory this part of the M1 is a 'smart motorway', which means that the hard shoulder is sometimes for breakdowns, but sometimes a running lane. The speed limit on that stretch can vary depending on how heavy traffic is, as high as 70, but sometimes 60, 50, 40 or probably even lower.