The findings come from RAM Tracking, which examined the speeds and locations of business drivers across the country on more than 440,000 individual journeys in February 2013.

Using its “RAM Evolution” tracking system, the company compiled and analysed GPS data from some seven million individual report points, comparing distanced travelled during the rush hour commute of 8am  to 9am, compared with the later time of 11am to 12pm.

Nine of the top ten peak period black spots, and thirteen of the top twenty, are in London, with Jamaica Road, Southwark coming top of the poll, where drivers have posted an average near-standstill speed of a tenth of a mile an hour on certain points of the road at peak times.

This was closely followed by Bedford Road (B221) in Clapham, which pulled up to the bumper in second place, with drivers recording an average of 0.13 miles an hour at congestion hotspots during the rush hour.

The most gridlocked road outside the Capital is Park Way, Trafford Park, Manchester, where traffic crawl hit a low at 0.69mph in this area.

Skipton Road, Harrogate is the next black spot on the list, leaving commuters and business drivers dawdling at an average speed of 1.43mph.

In response to the findings RAM has produced an interactive map to help drivers pinpoint and avoid some of the country's most congested roads, available by going to www.ramtracking.com/rush-hour-traffic-in-the-UK.html

Chris McClellan, managing director of RAM Tracking, said: ‘Our findings have revealed what a phenomenal amount of time many business drivers waste when travelling during the breakfast rush hour. By analysing the minute-by-minute motoring data provided by our tracking system spanning location, speed and fuel consumption, fleet managers and business owners can manage the efficiency and cost of running their vehicles.’

In addition to this data RAM has also collated the top five most congested motorways at morning rush hour. They are the M6 at Ward End, West Midlands (27mph); M62 at Hunsworth, West Yorkshire (34mph); the M4 at Brentford (37mph); the M11 at Chigwell, Essex (38mph); and the M25 at Downside, Essex (38mph).