teabelly wrote:
Seems a pretty big coincidence that the same percentage are classed as speeding as illegal driving. I'd bet the correlation is much closer and it is highly unlikely any normal otherwise legal driver would have excess speed as a contributory factor. Inappropriate speed possibly but not excess speed. It may of course be an artifact of recording in that illegal drivers are much more likely to be recorded as speeding as legal ones depending on whether they were spoken to after the incident. Driving too fast for no reason at all isn't usual behaviour.
There's a rather baffling 'other' category at the bottom of Table 2 that needs looking into. Most of the 'special codes' appear to fall into the 'other' category.
I thought I should look it up... and here it is:
SPECIAL CODES Codes 901 - 903 apply to vehicles being driven in special circumstances, which contributed to the accident, whilst code 904 covers one specific scenario. Code 999 should only be used where no other code adequately summarises a factor which contributed to the accident.
INDIVIDUAL CODES
901 Stolen vehicle The vehicle identified in the "Which participant" box must be the stolen vehicle. Use this code only where the fact that the vehicle was stolen influenced the driver/rider's behaviour and contributed to the accident. Do not use this code simply to record the presence of a stolen vehicle.
902 Vehicle in course of crime Use this code to record a vehicle which was being in driven/ridden in the course of a crime and where this influenced the driver/rider's behaviour and contributed to the accident. Use this code also where the vehicle was being pursued by the police in response to a suspected crime.
903 Emergency vehicle on a call Use this code to record all emergency vehicles which were responding to emergency calls and which caused or contributed to the accident. Emergency vehicle should be displaying flashing blue light. Emergency vehicles include ambulances, fire engines (and other fire service vehicles), police, mountain rescue and coastguard vehicles. Also includes unmarked vehicles displaying flashing blue light. Do not include emergency vehicles not displaying flashing blue light (eg. police cars on routine patrol, ambulances conveying patients to day centres or routine hospital appointments or fire engines returning from a call).
904 Vehicle door opened or closed negligently Driver or passenger opened a vehicle door causing a collision with another vehicle (eg. pedal cycle or motor cycle) or caused a passing vehicle to swerve which then contributed to an accident. Also applies to buses in which passengers are injured by opening or closing doors. Includes drivers who close vehicle door, trapping an alighted passenger's clothing, and then driving off.
999 Other - please specify below To be used only when no contributory factor is available to describe a particular circumstance which contributed to the accident. Includes all cases where a passenger caused or contributed to their own injury (eg. jumping from vehicle, "stealing a ride" and falling from vehicle, or being drunk and falling in bus). Code will also include all vehicle defects not listed in codes 201 - 206 (eg. Wheel became detached from vehicle, engine fire or engine seized).
From:
http://www.dft.gov.uk/stellent/groups/d ... 032188.pdf