81% of cars break 20mph speed limits

geograph 1700267 by Albert Bridge edited

Published on 5 July 2017 by Robert Drane

Data from the Department for Transport has shown that 81% of drivers exceeded 20mph speed limits last year. Speeding contributed to 15% of crashes in 2016.

The roads measured for this statistic did not include any traffic calming measures such as speed humps, chicanes or road narrowing. IAMRoadSmart remarked that many such 20mph roads do not do enough to encourage drivers to slow down.

Neil Greig, IAMRoadSmart’s Director of Policy and Research, said: “IAM RoadSmart have always felt that blanket 20mph limits, enforced by signposts only, are simply not enough to convey the reason for slowing down to drivers. Targeting the worst locations with traffic calming and other engineering features is a much more effective way to make 20mph limits self-enforcing.”

20's Plenty for Us hit back, stating that “the nine 20mph roads detailed in this report have very little in common with most residential and high street roads”. Instead, “in most wide-area 20mph roll-outs such roads would probably be excluded and left at 30mph, or be given additional signage, engineering or enforcement”.

Also in the Department for Transport’s report:

  • It was revealed that the percentage of drivers exceeding speed limits has gradually declined since 2011
  • Drivers are more likely to break speed limits at night
  • 53% of cars exceed the speed limit of 30mph roads
  • 46% of cars exceed the speed limit on motorways

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Main image: cc-by-sa/2.0 - © Albert Bridge - geograph.org.uk/p/1700267. Cropped, resized and colour balanced.