Leeds motorway in top 5 slowest in the UK - and Yorkshire road in top 10

A Leeds motorway has been awarded the dubious honour of being one of the slowest in the UK, according to data put together by a vehicle tracking firm.

The M621, which takes vehicles in and out of Leeds, is the fourth slowest motorway in the UK, with average speeds of just 42mph, despite a speed limit of 70mph. Sound familiar?

The M1 motorway, which runs up the the M621 as well as connecting to Sheffield, is number 6 in the list, with an average speed just 1mph faster, at 43mph, despite having more lanes and smart motorway sections.

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SATRAK Vehicle Tracking compiled research on the UK's Slowest Motorways. It found that the M25 is the slowest motorway in the UK with an average speed of 25.05mph and Cambridge is the slowest city at 13.73mph.

Data was taken from over 527,000 vehicles from the 1st January 2016 to 31st December 2016.