Skip to main content

New analysis finds speed cameras may create bad driving behaviour

Using more than one billion miles of driving behaviour data, collected over three years (2011-2014) and including 8,809 separate journeys in 5,353 vehicles, Wunelli, a LexisNexis company, has revealed the most frequent braking black spots across the UK created by speed cameras, based on motorists braking excessively just before speed cameras to avoid being caught. Eighty per cent of all the UK speed cameras investigated had hard braking activity, with braking increasing six fold on average at these loca
October 28, 2015 Read time: 4 mins
Using more than one billion miles of driving behaviour data, collected over three years (2011-2014) and including 8,809 separate journeys in 5,353 vehicles, Wunelli, a LexisNexis company, has revealed the most frequent braking black spots across the UK created by speed cameras, based on motorists braking excessively just before speed cameras to avoid being caught.

Eighty per cent of all the UK speed cameras investigated had hard braking activity, with braking increasing six fold on average at these locations. Wunelli defines a hard braking event as a change in speed of 6.5+ mph over a one-second time period, which is enough to propel a bag on the passenger seat into the foot-well.

Wunelli's key findings include: Eighty per cent of the UK speed cameras investigated are creating braking black spots; motorists hard braking activity increases on average by 689 per cent at these locations. The analysis also found that women exceed the speed limit 12 per cent less than men and hard brake 11 per cent less. In addition, motorists are most likely to speed at 5:59 am and least likely to speed at 5:16 pm, while motorists driving in 30 mph zones are found to be speeding 12 per cent of the time and at least 18 per cent over the speed limit.

Motorists in Caithness, Scotland, speed 36 per cent of the time, whilst motorists in Greater London only speed 8eight per cent of the time. A 30 per cent reduction in speeding is achieved by those provided with feedback via personal dashboards or smartphone devices

The Wunelli analysis also identified that drivers of four-wheel drive gold estate cars are typically the safest drivers as determined by fewest speeding, braking and claims events.

Paul Stacy, founding director, Wunelli said: "These findings question whether speed cameras are serving their purpose as a road safety tool or whether they are instead encouraging poor driving behaviour.

"The breadth and depth of data Wunelli can now aggregate and study means driving behaviour analysis is now possible on a range of vehicle factors, if you wanted to identify which car driver is least likely to be involved in an accident based on the driving behaviour we have recorded, they would be the owner of an estate car, gold colour, four-wheel drive and about £10k in value. Of course, that's not to say gold-coloured 4WD estate owners are all safe drivers."

The analysis also uncovered that residential roads (under 40mph) have significantly more accidents per mile than roads with higher speed limits. This type of information is not only hugely valuable to insurers but immensely important for motor manufacturers and the designers of the cars and the road networks of the future.

Ash Hassib, SVP and GM, Auto and Home Insurance, LexisNexis Risk Solutions, adds, "We have collected over a billion miles of driving behaviour data, and our analysis has provided some extremely important insights. We are building upon these insights to show the potentially dangerous effects of certain speed deterrents on driving behaviour as speeding drivers take erratic measures, such as braking harshly, to avoid being penalised. This supports the theory of accidents being 'wake up calls' to drivers to take more care and proof that a carrot rather than a stick approach works in improving driving behaviour."

The analysis was based on speed camera location data of 2012.The results are of over 5500 cameras analysed by Wunelli, the 10 speed cameras were selected on the following criteria: Camera was not a red light camera nor at a railway level crossing; Braking events near the camera had a low propensity to be caused by other local features, such as side streets, intersections; There was a significantly higher proportion of braking events within 0-50m of the camera compared to 50-100m of the camera (braking event cluster); More than 25 braking events were recorded within 50m of the camera.

Related Content

  • January 30, 2012
    Managed motorways, hard shoulder running aids safety, saves time
    The announcement that, in 2012/13, work to extend Managed Motorways to Junctions 5-8 of the M6 near Birmingham in the West Midlands is scheduled to start marks the next step for the UK's hard shoulder running concept, first introduced on the M42 in 2006. The M6 scheme is in fact one of several announced; over the next few years work will start on applying Managed Motorways to various sections of the M1, M25 London Orbital, M60 and M62. According to Paul Unwin, senior project manager with the Highways Agency
  • May 15, 2013
    Reducing at-risk driver behaviour with IVMS technology
    Parsons Brinckerhoff has introduced an in-vehicle monitoring system (IVMS) for its entire fleet of motor vehicles in Australia, working with Securatrak to tailor the solution to its needs. The GPS tracking and journey management system will track almost any aspect of the fleet’s performance, anywhere and at any time, including the speed and route as well as behaviour such as the use of seatbelts, harsh braking and cornering, or whether 4WD is engaged when required. Parsons Brinckerhoff managing director for
  • October 31, 2016
    Average speed cameras reduce injury collisions, says report
    Research carried out into average speed camera (ASC) effectiveness by the UK’s RAC Foundation concludes that the implementation of ASCs in the locations that have been assessed in its report has had the effect of reducing injury collisions, and especially those of a higher severity. Even taking into account other influencing factors, the report says the reductions are large and statistically significant. Researchers analysed detailed accident data taken from 25 sites where average speed cameras were inst
  • January 31, 2012
    Pupil power used in uncompromising school zone speeding initiative
    In a unique and hard-hitting speed reduction initiative, primary schoolchildren across Carmarthenshire, in Wales, have been targeting drivers who drive too fast near their schools.