Which is the UK’s slowest motorway
The UK’s slowest motorway has been officially named, with the M25 circling London clocking a miserable average speed of just 25.05 miles per hour last year.
The M4 between London and South Wales was found to be the second slowest stretch of motorway in the UK with drivers reaching just 30.46 mph on average, according to the figures by vehicle tracking company Satrak. Analysing data from 527,000 cars for over a year, the firm also found that the average speed on the 10 slowest motorways in the UK was a measly 41.17mph.
While London and its surrounding boroughs are the usual suspects for congestion, three of the top five most congested motorways were located further north. Drivers on the M606 in West Yorkshire averaged just 40.68mph over the year, while those driving near Le...
