Understanding inappropriate high speed: a quantitative analysis
- Published: Department for Transport, Road Safety Research Report No.93, 2008
- Authors: S. Stradling, P. Broughton, N. Kinnear, C. O’Dolan, R. Fuller, M. Gormley, B. Hannigan
- Date Added: 07 Mar 2014
- Last Update: 07 Mar 2014
To explore driver experiences and perceptions regarding speed choice and to identify the extent to which the concept of the Task-Capability Interface reported in Road Safety Research Report No. 92 applies. To help inform media campaigns.
Four focus groups involving professional drivers, participants on a speed awareness course and riders of motorcycles (36 participants in total). Survey of 1,005 drivers (928 were current drivers)
Drivers significantly overestimated the time gained by driving faster and time lost by driving slower than 10 mph above/below 60 mph.
Just under a fifth (17 per cent) of drivers had been involved in an accident as a driver in the last 3 years, with 12 per cent of these drivers saying driving too fast for the conditions was a factor.
43 per cent of drivers said they drove at 35 mph in a 30 mph area at least once a week (33 per cent drove at 35 mph in a 30 mph area at least 3 times a week). Around a quarter said they never exceeded the limit in a 30 mph area.
19 per cent of drivers had driven at 70 mph on a 60 mph single carriage road at least once a week, with around one in ten doing so at least 3 times a week. The figures are similar for driving at 80mph in a 70 mph area.
People were far more likely to view 40 mph in a 30 mph area as speeding and unacceptable than driving at 35 mph, with just over 15 per cent doing so at least weekly.
Around a quarter of drivers disagreed with fact based statements that associate speed with collision risk.
13 per cent of drivers said they never exceeded any of the speed limits asked about (30, 60 and 70); 7 per cent had exceeded all limits by a large margin at least once in the month prior to interview.
Drivers could be classified into a typology of drivers based on the frequency of their speeding and the extent to which they exceed the posted limits. This resulted in three groups being identified: excessive speeders (14 per cent); moderate speeders (33 per cent) and speed limit compliant (52 per cent).
Speed, driver behaviour, driver attitudes,
Mixed method study.