Quote:
Originally Posted by Thunder Lizard
There are other data missing from this report, too. Not that I don't agree with the basic points in the report... yes, motorcycles are rising in popularity and population, and perhaps there are more "new" or "renewed" riders too, but
I'd like to see several other breakdowns...
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I've read reports where fully 1/4 (but some reports put this number at closer to 50%) of us crashing have done so without the help of another vehicle. Here is one study:
These findings are summarized as follows:
1. Approximately three-fourths of these motorcycle accidents involved collision with another vehicle, which was most usually a passenger automobile.
2. Approximately one-fourth of these motorcycle accidents were single vehicle accidents involving the motorcycle colliding with the roadway or some fixed object in the environment.
3. Vehicle failure accounted for less than 3% of these motorcycle accidents, and most of those were single vehicle accidents where control was lost due to a puncture flat.
4. In the single vehicle accidents, motorcycle rider error was present as the accident precipitating factor in about two-thirds of the cases, with the typical error being a slide out and fall due to over braking or running wide on a curve due to excess speed or under-cornering.
5. Roadway defects (pavement ridges, potholes, etc.) were the accident cause in 2% of the accidents; animal involvement was 1% of the accidents.
6. In the multiple vehicle accidents, the driver of the other vehicle violated the motorcycle right-of-way and caused the accident in two-thirds of those accidents.
7. The failure of motorists to detect and recognize motorcycles in traffic is the predominating cause of motorcycle accidents. The driver of the other vehicle involved in collision with the motorcycle did not see the motorcycle before the collision, or did not see the motorcycle until too late to avoid the collision.
8. Deliberate hostile action by a motorist against a motorcycle rider is a rare accident cause. The most frequent accident configuration is the motorcycle proceeding straight then the automobile makes a left turn in front of the oncoming motorcycle.
9. Intersections are the most likely place for the motorcycle accident, with the other vehicle violating the motorcycle right-of-way, and often violating traffic controls.
10. Weather is not a factor in 98% of motorcycle accidents.
11. Most motorcycle accidents involve a short trip associated with shopping, errands, friends, entertainment or recreation, and the accident is likely to happen in a very short time close to the trip origin.
12. The view of the motorcycle or the other vehicle involved in the accident is limited by glare or obstructed by other vehicles in almost half of the multiple vehicle accidents.
13. Conspicuity of the motorcycle is a critical factor in the multiple vehicle accidents, and accident involvement is significantly reduced by the use of motorcycle headlamps (on in daylight) and the wearing of high visibility yellow, orange or bright red jackets. (Note: the statistics which have just been released here in Australia - August 1996, DO NOT SHOW that "Lights on" legislation has worked!)
14. Fuel system leaks and spills were present in 62% of the motorcycle accidents in the post-crash phase. This represents an undue hazard for fire.
15. The median pre-crash speed was 29.8 mph, and the median crash speed was 21.5 mph, and the one-in-a-thousand crash speed is approximately 86 mph.
16. The typical motorcycle pre-crash lines-of-sight to the traffic hazard portray no contribution of the limits of peripheral vision; more than three- fourths of all accident hazards are within 45 degrees of either side of straight ahead.
17. Conspicuity of the motorcycle is most critical for the frontal surfaces of the motorcycle and rider.
18. defects related to accident causation are rare and likely to be due to deficient or defective maintenance.
19. Motorcycle riders between the ages of 16 and 24 are significantly over-represented in accidents; motorcycle riders between the ages of 30 and 50 are significantly under represented. Although the majority of the accident-involved motorcycle riders are male (96%), the female motorcycle riders are significantly over represented in the accident data.
20. Craftsmen, laborers, and students comprise most of the accident-involved motorcycle riders. Professionals, sales workers, and craftsmen are under represented and laborers, students and unemployed are over- represented in the accidents.
21. Motorcycle riders with previous recent traffic citations and accidents are over represented in the accident data.
22. T he motorcycle riders involved in accidents are essentially without training; 92% were self-taught or learned from family or friends. Motorcycle rider training experience reduces accident involvement and is related to reduced injuries in the event of accidents.
23. More than half of the accident-involved motorcycle riders had less than 5 months experience on the accident motorcycle, although the total street riding experience was almost 3 years. Motorcycle riders with dirt bike experience are significantly under represented in the accident data.
24. Lack of attention to the driving task is a common factor for the motorcyclist in an accident.
25. Almost half of the fatal accidents show alcohol involvement.
26. Motorcycle riders in these accidents showed significant collision avoidance problems. Most riders would over brake and skid the rear wheel, and under brake the front wheel greatly reducing collision avoidance deceleration. The ability to counter steer and swerve was essentially absent.
27. The typical motorcycle accident allows the motorcyclist just less than 2 seconds to complete all collision avoidance action.
28. Passenger-carrying motorcycles are not over represented in the accident area.
29. The driver of the other vehicles involved in collision with the motorcycle are not distinguished from other accident populations except that the ages of 20 to 29, and beyond 65 are over represented. Also, these drivers are generally unfamiliar with motorcycles.
30. The large displacement motorcycles are under represented in accidents but they are associated with higher injury severity when involved in accidents.