beginner wrote:RhadamYgg wrote:What's hard to ignore is the number of single vehicle motorcycle crashes, 47%.
There is a certain component of the single-vehicle crashes that belongs in the rider skill department. However, about half of the single-vehicle motorcycle accidents are drunk drivers.
Interestingly enough, about half of the multi-vehicle accidents involving accidents are drunk riders.
It is close to 50% of motorcyclist accidents that involve drunk riders. Similar to the drunk rider we made fun of a while back that stopped at a light and put his feet up on the pegs... Without having any stands down - dropping his bike in front of a cop and getting busted as a drunk rider.
RhadamYgg
The numbers you mention don't seem to reflect what's going on in Michigan. From the Michigan study cited earlier.
http://www.motorcyclesafetyinfo.com/mic ... chigan.pdf
"• Alcohol and/or drug use are indicated in 38.2% of motorcycle operator FATALITIES.
• Alcohol and/or drug use are indicated in 39.8% of ALL driver FATALITIES.
• Alcohol and/or drug use are indicated with 7.5% of motorcycle operators involved in a motorcycle CRASH.
• Alcohol and/or drug use are indicated with 2.4% of drivers involved in ALL crashes."
Riding DUI increases the chance of dying in a crash but it's not an factor in the overwhelming majority of crashes.
2001 Fatal Single Vehicle Motorcycle Crashes
Unfortunately, the government doesn't do this study every year - which they should. This report is from 2001 - and covers the years 1990 to 1999.
In that time frame:
The minimum percentage of fatal single vehicle motorcycle accidents was 43%.
The maximum percentage of fatal single vehicle motorcycle accidents was 47%.
41% of those accidents - were from excessive speed.
42% of those accidents - involved intoxicated motorcyclists.
(please note that the 41% and the 41% probably overlap, but are not specifically the same people - means that some people died because of speeding but weren't drunk and some people who were drunk and died weren't necessary speeding.... Unfortunately, they don't give us enough information to tell what the overlap of these two groups are)
...
61% of fatal single vehicle motorcycle accidents that occurred on the weekend involved... intoxicated motorcyclists.
In the list of major factors in single vehicle motorcycle fatalities... It lists a few things... Drinking and riding and speeding among them, but it does not specifically list motorcyclist skill level.
Now, I'm sure skill level has something to do with at least some of these... But you first have to eliminate the drunks and the speeders from the entire group (impossible to do since they don't list the data properly)... But certainly saying that 5% of each group is not a part of the other gives us close to half the fatalities don't involve skill alone.
Certainly, I'm not going to argue that some of them in the speeding category simple overrode their skill level or their sight distance.
Before we get too far in to this... Using the data one could easily argue that we should ban all larger displacement bikes as most of the fatalities occur in large displacement bikes... Or we could use our head and understand that most of the fatalities occur on larger displacement bikes because.... Most of us buy larger displacement bikes...
Speeding as factor... oh they do list some it properly.
The minimum percentage over this time period where speeding was a factor in the single vehicle motorcycle fatality - 54%.
The maximum percentage over this time period where speeding was a factor in the single vehicle motorcycle fatality - 63%.
Interestingly enough... A great deal of us die in single vehicle motorcycle accidents do absolutely nothing (swerve, brake) before crashing. (28% to 28%). I'm guessing that skill doesn't play in most of these. Some of these might also be speeding accidents where there was simply no chance to do something before impacting a vehicle from behind at a high speed.
There is also a section of the report with a great graph on page 26... It lists fatalities by Blood Alcohol Content. Red + Blue = greater than 50% of single vehicle motorcycle fatalities involved riders that were either drunk, or had been drinking recently. (Chart 4)
This is a good link for a variety of NHTSA documentation:
NHTSA Docs
In the Motorcycling Excellence book from the MSF... It has a nice section on Alcohol involvement and the ability to ride motorcycles. They indicated that long before a person was legally drunk, their ability to ride a motorcycle was significantly impaired.
Another interesting like to reports by the NHTSA -
NHTSA Reports
Fatal Two-Vehicle Motorcycle crashes
This document points out:
"Alcohol involvement among motorcycle operators killed was almost 2.5 times the alcohol involvement of the passenger vehicle drivers involved in these crashes."
"Nearly one-fourth (24%) of the motorcycle operators killed in two-vehicle crashes involving passenger vehicles, had an invalid license at the time of the crash compared to 8 percent of the passenger vehicle drivers."
This is a good indication that the riders had zero training from an official source. Training and practice are a very hard battle when you can't even get 24% of motorcycle riders to even - you know - get the appropriate license.
"In 13 percent of the two-vehicle motorcycle crashes involving passenger vehicles, braking was reported as a crash avoidance maneuver by the motorcycle operators."
The above 13%... Are the ones you are targeting with the training and stopping in an appropriate time. However, it would be hard to say what percentage of those 13% would actually have enough space to stop if they were a pro at braking.
I love this stat they point out:
"Nearly 62,000 motorcycle riders died in multivehicle motorcycle crashes between 1975 and 2005."
It takes approximately 2 years for the number of people to die in cars and light trucks to catch up to the number of motorcyclists that have died in 30 years.
So, from this document on the multivehicle side - 23% of fatal motorcycle accidents involve alcohol on the part of the motorcyclists.
Percentage of multivehicle accidents involving alcohol
|> 23% + 42% = 65% of all motorcyclists fatal accidents
^ ^^--> percentage of all bike fatalities inv. alcohol.
Percentage of single-vehicle accidents involving alcohol
This doesn't mean that the motorcyclists were drunk, but it does mean they had alcohol in their systems at the time of the collision that cost their life.
Bleh, this post is too large already and I'm tired.
As they advertise in the back of the biker mags.... Don't drink and ride.
Not saying you don't need skills to survive on a bike. Just saying that in terms of what I would attack first to reduce fatalities, I'd go after something that is more controllable than skills - I'd go after drunk riding.
RhadamYgg