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MADDOG 
Group: Moderator
Posts: 7821
Joined: Aug. 2003
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Posted on: Jul. 02 2004,5:57 pm |
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The National Highway Safety Administration has identified that driver inattention is major contributor to highway crashed. The administration estimates that 25% of police reported crashes involve some form of driver inattention.Distraction, combined with an increasingly sleep deprived population, leads to a number of preventable crashes.
One way State Highway Departments have been combating driver inattention and fatigue is the installation of rumble strips. The use of rumble shoulder rumble strip has been adopted by a number of states. When a driver strays toward the shoulder, he receives both a vibration and a audible cue that they are about to leave the road. In addition to placement of shoulder rumble strips, much discussion has been made on in-lane rumble strips installed at stop signs and railroad crossings. Like the argument on shoulder strips, in-lane rumble strips give a driver both a vibration and audible cue that road conditions are about to change.
Historically, rumble strips have been used to alert driver's of upcoming changes in road conditions. (i.e. intersection, stop or yieldconditions, railroad crossings and areas with poor geometrics or places with a large number of accidents) While the use of rumble strips continue to be popular, little documentation of accidents before/after accident/crash information has been published.
One report, NCHRP synthsis 191 Use of rumble strips to enhance safety-A Synthesis of Highway Practices, published in 1993 summarizes information on highway travel lanes usage. The author of this report indicates that most of the before and after studies are small, not statistically significant, poorly designed and difficult to quantify. Given the limitations of the information available, the author of the report was able to only draw limited conclusions. He indicated that:
Despite the lack rigor of in their accident evaluation designs, the study results in the literature, generally indicate that rumble strip installation in the travel lane can be effective in reducing accidents, however the study results are not reliable to quantify the expected accident reduction effectiveness.
Rumble strip installation in the travel lane should be considered at locations where rear-end and ran STOP SIGNS accidents involving an apparent lack of driver attention are prevelant.
Care should be taken not to overuse rumble strips by placing them in too many locations in the travel lane.
Normally, placement of rumble strips in the travel lane should only be considered where a documented accident problem exists and only after more conventional treatments, such as signing have been tried and found ineffective.
Source: the Minnesota Department of Transportration. There's much more infomation on this site. It's a pdf file, you can find at www.lrrb.gen.mn.us/pdf/200207.pdf
Edited by MADDOG on Jul. 02 2004,6:10 pm
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Actually my wife is especially happy when my google check arrives each month. Thanks to douchbags like you, I get paid just for getting you worked up. -Liberal
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| Post Number: 2
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Montyman
Group: Members
Posts: 421
Joined: Dec. 2003
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Posted on: Jul. 03 2004,10:28 am |
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I don't know what your agenda is, but you failed to point out the current/recent studies about in-lane rumble strips being done by the U of M, Mn/DOT and other researchers...additional studies are also underway. You are quoting a 10+ year old research report. Get with it!
Preliminary conclusions at this stage are that the in-lane strips only cause drivers to brake sooner.
Impaired drivers are to be studied in greater detail.
The fact is----impaired drivers are the problem in most cases, not the roadway or signs or rumble strips.
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Ignorant men raise questions that wise men answered a thousand years ago. Johann Wolfgang von Goethe
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| Post Number: 3
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Liberal
Group: Moderator
Posts: 11451
Joined: Aug. 2003
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Posted on: Jul. 03 2004,10:42 am |
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You are quoting a 10+ year old research report. Get with it!
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So, in the ten years since that report was published, what's changed? Aren't rumble strips, cars, intersections and people all the same now as they were 10 years ago?
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The people are masters of both Congress and courts, not to overthrow the Constitution, but to overthrow the men who pervert it!
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| Post Number: 4
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MADDOG
Group: Moderator
Posts: 7821
Joined: Aug. 2003
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Posted on: Jul. 03 2004,11:05 am |
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Montyman, you are correct that ongoing studies are being done. I believe the U of M Human Factors Lab is currently doing a 18 month study. However, this report was revised June, 2000. Yes, they have found that drivers brake sooner, but also harder. The question is, do rumble strips possible lower accidents and save lives? | Quote | | The fact is----impaired drivers are the problem in most cases, not the roadway or signs or rumble strips. |
I do believe that also, inattentive drivers and sleepy ones can also blast through stop signs.
Question, could rumble strips possibly saved that little girls life that was taken east of Hayward recently?
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Actually my wife is especially happy when my google check arrives each month. Thanks to douchbags like you, I get paid just for getting you worked up. -Liberal
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| Post Number: 5
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Montyman
Group: Members
Posts: 421
Joined: Dec. 2003
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Posted on: Jul. 03 2004,3:52 pm |
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Can you tell me what the "inattentive driver's" BAC was?
I heard it was over 0.2...that's REALLY "inattentive"!
I used the word "impaired" to mean sh--faced.
The Human Factors Lab has not yet concluded that in-lane rumble strips are effective.
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Ignorant men raise questions that wise men answered a thousand years ago. Johann Wolfgang von Goethe
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| Post Number: 6
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Liberal
Group: Moderator
Posts: 11451
Joined: Aug. 2003
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Posted on: Jul. 03 2004,5:09 pm |
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It was right at the legal limit according to the Albert Lea Tribune
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Last week, Mark Lovell was changed with vehicular homicide in the death of one-year-old Cloe Jauregui, who died when the car she was riding in with her parents and siblings, was hit by Lovell.
A blood test following the crash showed Lovell had a .10 blood alcohol level.
Albert Lea Tribune 5/23/04
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The people are masters of both Congress and courts, not to overthrow the Constitution, but to overthrow the men who pervert it!
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| Post Number: 7
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MADDOG
Group: Moderator
Posts: 7821
Joined: Aug. 2003
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Posted on: Jul. 04 2004,12:41 pm |
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Montyman, sh#$faced or not, and Liberal showed you he was.10, does rumble strips help not cause accidents? My controversy isn't with you, but with Sue Miller (Highway Department who seems to be against installing them. (No offense Sue)
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Actually my wife is especially happy when my google check arrives each month. Thanks to douchbags like you, I get paid just for getting you worked up. -Liberal
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| Post Number: 8
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Mamma
Group: Members
Posts: 1474
Joined: Aug. 2003
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Posted on: Jul. 05 2004,7:01 am |
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I do a lot of traveling every week. I tend to get off the beaten track as much as possible, and have been on the back roads of most of Iowa and Wisconsin. I KNOW that rumble strips help. They have alerted me to an intersection that I didn't know existed. I really have a problem thinking it is a high priced option to alerting people to a stop sign. In the cases where I have run into the rumble strips, a larger stop sign just wouldn't have helped. I wonder why Ms Miller is so against the rumble strips. I can't imagine it is money....she didn't have a problem asking for a new office. If the state can run the strips for miles and miles why can't the county put in a couple on the intersections that need them? 
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A conclusion is simply the place where you got tired of thinking.
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| Post Number: 9
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Ole1kanobe
Group: Members
Posts: 1360
Joined: Aug. 2003
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Posted on: Jul. 05 2004,5:10 pm |
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| Quote | | I wonder why Ms Miller is so against the rumble strips. I can't imagine it is money....she didn't have a problem asking for a new office. If the state can run the strips for miles and miles why can't the county put in a couple on the intersections that need them? |
Exactly 
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The world is a dangerous place to live, not because of the people who are evil, but because of the people who don't do anything about it.
-Albert Einstein-
Some of what is said here (myself included) is about as tolerable as listening to someone vacuum a cat.
-nphilbro-
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| Post Number: 10
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GEOKARJO
Google This!!!
Group: Members
Posts: 7799
Joined: Aug. 2003
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Posted on: Jul. 05 2004,7:02 pm |
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Maybe they can't afford the study.
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