And the slowest commuter route is... in Harrogate

The figures also showed some drivers crawl at less than one tenth of a mile an hour in the morning rush-hour.

The worst of the snail-pace journeys are in London, while Manchester, Merseyside and Birmingham also have some of the slowest-moving roads.

All the 10 slowest-moving roads were in Greater London, while the worst route outside the UK capital was the A5081 Park Way in Trafford Park, Manchester, at 0.69mph.

The next-worst outside London was Skipton Road in Harrogate, North Yorkshire, at 1.50mph, followed by the B5145 Poulton Road in Wallasey on Merseyside at 1.76mph.

Jamaica Road in Southwark, south London, was found to have the worst jams in the survey by GPS vehicle tracking supplier RAM Tracking.

Those choosing to travel along this Southwark route averaged just 0.08 miles an hour between 8am and 9am in February 2013, the survey showed.

The next-worst congested route was the B221 Bedford Road in Clapham, south London, where traffic managed 0.13mph.

Third equal in the slow-coach list was Greenhill Way in Harrow, north west London, and Queen Anne’s Gate in Westminster, central London, with rates of 0.25mph.

In the non-London list, Headington in Oxford appears twice in the top 20, while Birmingham has six of the 20 most-congested roads.

RAM Tracking managing director Chris McClellan said: “Our findings have revealed what a phenomenal amount of time many business drivers waste when travelling during the breakfast rush- hour.”