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Search: Posts Made By: prathmann
Showing results 1 to 42 of 42
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Forum: Advocacy & Safety
08-17-14, 12:01 AM
Replies: 8,742
Views: 640,819
Posted By prathmann

This is a problem related to the moderators here...

This is a problem related to the moderators here moving posts around. Bragi made his post in the 'Car-Free' subforum and probably hadn't seen the recent discussion around meanwhile's posts here. ...
Forum: Advocacy & Safety
08-16-14, 11:39 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

Sure the data accuracy and completeness is...

Sure the data accuracy and completeness is suspect, but that's by no means the only problem. It's also necessary to properly use the data one has in subsequent calculations.

In the post you cite...
Forum: Advocacy & Safety
08-16-14, 06:25 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

Yes, reading this comparison reminded me of a...

Yes, reading this comparison reminded me of a story by someone who had been terrified while being driven around Saudi Arabia (even worse stats than UAE) on a narrow road with numerous small hills. ...
Forum: Advocacy & Safety
06-30-14, 04:17 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

Maybe, but I suspect one would want a helmet with...

Maybe, but I suspect one would want a helmet with a more substantial outer shell to withstand hoof impacts. Among bike helmets I'd opt for my old Bell Biker over any current model.

One of our...
Forum: Advocacy & Safety
06-11-14, 04:52 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

Finally a statement by you with which I agree. ...

Finally a statement by you with which I agree. This was brought home to me on a recent bike tour while waiting for a friend to do some shopping at a Target store. I was sitting at a bench outside...
Forum: Advocacy & Safety
05-28-14, 08:48 AM
Replies: 8,742
Views: 640,819
Posted By prathmann

Around here (SF Bay area), I see the helmet on...

Around here (SF Bay area), I see the helmet on bars almost entirely for two reasons. Most common is kids riding to/from school. There's an MHL for kids that tends to be enforced at the school...
Forum: Advocacy & Safety
05-02-14, 11:48 AM
Replies: 8,742
Views: 640,819
Posted By prathmann

There's only one test I've ever seen reported on...

There's only one test I've ever seen reported on older helmets. It's at the BHSI website - they took a well-used and sun-yellowed Bell Biker helmet that was over 10 years old and sent it off to...
Forum: Advocacy & Safety
05-01-14, 08:12 AM
Replies: 8,742
Views: 640,819
Posted By prathmann

My guess is that the most common cause is setting...

My guess is that the most common cause is setting the helmet on top of the car when loading the bike on the rack and then forgetting about it and driving off. The ones I've seen on the road side...
Forum: Advocacy & Safety
04-29-14, 05:42 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

Neither have I, but I've picked up several that...

Neither have I, but I've picked up several that were left by the side of a road or trail. Maybe that's because not many people ride their bicycles in the ocean.
Forum: Advocacy & Safety
04-27-14, 04:49 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

In Ontario all bicyclists under the age of 18...

In Ontario all bicyclists under the age of 18 must wear a helmet. [And all operators of electrically-assisted bicycles must wear helmets in the province.]
Forum: Advocacy & Safety
04-15-14, 12:15 AM
Replies: 8,742
Views: 640,819
Posted By prathmann

That's been my experience as well with regard to...

That's been my experience as well with regard to club helmet requirements for normal (non-race) club rides. I checked with the insurance company recommended by the League of American Bicyclists to...
Forum: Advocacy & Safety
04-04-14, 10:25 AM
Replies: 8,742
Views: 640,819
Posted By prathmann

Good, sounds like the realize the problems of...

Good, sounds like the realize the problems of combining a bike-share program with a MHL: "Kingston expects the helmet rule to be gone by the end of the year, right before the city gets a respectably...
Forum: Advocacy & Safety
03-30-14, 04:21 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

Sure they did, they just weren't very popular. A...

Sure they did, they just weren't very popular. A couple years later I had a bike crash specifically because I was wearing a helmet. My father had given me one for my birthday so of course I...
Forum: Advocacy & Safety
03-19-14, 11:43 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

"Note that falling off a bike would be an...

"Note that falling off a bike would be an occasional happening, so the frequency would be "Occasional," with a Liklihood rating of 3. The Severity rating would be either a 3 or 4 (with the...
Forum: Advocacy & Safety
01-02-14, 03:52 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

Of course the statistics only represent those who...

Of course the statistics only represent those who seek professional medical care after a crash. Those under 19 are more likely to still live with parents who want to have a doctor check out their...
Forum: Advocacy & Safety
12-25-13, 01:18 AM
Replies: 8,742
Views: 640,819
Posted By prathmann

Bonking is fairly common. Blacking out as a...

Bonking is fairly common. Blacking out as a result of it is not and should be checked out to determine a cause.
Forum: Advocacy & Safety
12-08-13, 09:55 AM
Replies: 8,742
Views: 640,819
Posted By prathmann

First is that it's been demonstrated in studies...

First is that it's been demonstrated in studies specifically looking for ridership pre- and post-law. When Australia enacted its all-ages MHL there were rider counts conducted at numerous locations...
Forum: Advocacy & Safety
11-25-13, 09:36 AM
Replies: 8,742
Views: 640,819
Posted By prathmann

agreed. Color of clothing can certainly make a...

agreed. Color of clothing can certainly make a difference when out in the sun and I make sure never to wear my black jersey on hot sunny days. But the foam layer that's between the outer surface of...
Forum: Advocacy & Safety
06-21-13, 09:24 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

Just because the data you found is inconclusive...

Just because the data you found is inconclusive since it lumps bike accidents together with other causes does not make the data I was using 'incorrect.' I was going by the number of brain injury...
Forum: Advocacy & Safety
06-20-13, 09:01 AM
Replies: 8,742
Views: 640,819
Posted By prathmann

Bicycling accounts for about 2% of all head...

Bicycling accounts for about 2% of all head injuries, so not cycling still leaves you vulnerable to the other 98% - hardly perfect protection. And if you stop cycling you might well be doing more of...
Forum: Advocacy & Safety
05-16-13, 08:10 AM
Replies: 8,742
Views: 640,819
Posted By prathmann

If that were the case then there would have been...

If that were the case then there would have been a sizable decrease in the number of fatalities and hospitalizations among cyclists - i.e. a discernible decrease in the injury and fatality rate.
Forum: Advocacy & Safety
04-11-13, 03:26 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

Ok. Your previous statement was: "My...

Ok.
Your previous statement was: "My interpretation of "shifting the goalposts" is that when you make an argument and it doesn't seem to get any traction, you come up with another argument in the...
Forum: Advocacy & Safety
03-27-13, 07:24 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

Nope, when the clubs I've been involved with...

Nope, when the clubs I've been involved with incorporated there was no mention made of helmets. And when the clubs discussed riding rules there were no lawyers present (unless some of the cyclists...
Forum: Advocacy & Safety
03-27-13, 01:36 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

If cyclists were really so opposed to requiring...

If cyclists were really so opposed to requiring other cyclists to wear helmets we wouldn't see so many bike clubs with rules requiring helmets on their rides. [BTW, it's not due to insurance...
Forum: Advocacy & Safety
02-02-13, 06:08 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

Skye already pointed you to some good sources for...

Skye already pointed you to some good sources for studies both pro and con on the helmet effectiveness issue. I'd just like to add that the IIHS analysis depends on the FARS (Fatality Analysis...
Forum: Advocacy & Safety
01-20-13, 05:57 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

Except that there were several studies done to...

Except that there were several studies done to examine why ABS didn't produce the expected safety benefits (some of which I cited previously) and they found that drivers in cars equipped with ABS...
Forum: Advocacy & Safety
01-19-13, 07:17 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

Useful, but not necessarily any more safe. If...

Useful, but not necessarily any more safe. If you read the studies quoted above you'll see that when fleets of otherwise identical taxicabs were divided into those with and without ABS and also...
Forum: Advocacy & Safety
01-18-13, 05:39 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

Surely that depends on what the numbers actually...

Surely that depends on what the numbers actually show for any particular safety measure. Introduction of both seat-belts and airbags showed substantial reductions in fatalities and injuries, but ABS...
Forum: Advocacy & Safety
11-02-12, 09:58 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

I wear one on club rides (where unfortunately...

I wear one on club rides (where unfortunately there's a mandate), but not for most of my utility riding.
Forum: Advocacy & Safety
10-20-12, 07:26 AM
Replies: 8,742
Views: 640,819
Posted By prathmann

If there were agreement on that ('helmets are...

If there were agreement on that ('helmets are effectively useless' in preventing serious injury) then we wouldn't be having this extended discussion and no one would be proclaiming that one must wear...
Forum: Advocacy & Safety
10-19-12, 03:15 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

Trekking poles are marketed as improving...

Trekking poles are marketed as improving efficiency rather than primarily for safety. But apparently some schools in Japan require students walking to school to wear helmets, so I presume there are...
Forum: Advocacy & Safety
10-19-12, 02:51 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

Not all that different. Bicycling on city...

Not all that different. Bicycling on city streets and walking on the adjoining sidewalks/crosswalks are both very safe activities when done in the absence of motor vehicles. Sure, there are some...
Forum: Advocacy & Safety
10-15-12, 08:36 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

I'm sure there have been some - still won't stop...

I'm sure there have been some - still won't stop me from just slipping into my shoes without tying them if I'm just going a few feet outside to pick up the paper although I'd certainly tie them...
Forum: Advocacy & Safety
07-11-12, 01:18 AM
Replies: 8,742
Views: 640,819
Posted By prathmann

Sure, but 26 kft in 50 miles still seems like a...

Sure, but 26 kft in 50 miles still seems like a lot. Assuming half of the loop is descending and half is ascending then you're gaining 26 kft over 25 miles, i.e. an average grade of about 20%. Is...
Forum: Advocacy & Safety
07-09-12, 06:02 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

I haven't found typical bicycle helmets to be...

I haven't found typical bicycle helmets to be adequate in that regard. So I wear a bicycling cap whether or not there's a helmet on top of it.
Forum: Advocacy & Safety
04-27-12, 12:34 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

Same as most of us - i.e. without much data. ...

Same as most of us - i.e. without much data.

Our daughter finished medical school a few years ago and the only mention of bike helmets was by her 1st year psych professor who was a strong...
Forum: Advocacy & Safety
03-05-12, 06:59 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

Agreed that ardent cyclists are unlikely to be...

Agreed that ardent cyclists are unlikely to be discouraged.

But someone who is discouraged from being even a casual cyclist is then unlikely to later become an enthusiast. And while cycling...
Forum: Advocacy & Safety
03-05-12, 04:17 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

Actually on the bikes that I converted from...

Actually on the bikes that I converted from chrome-plated rims to aluminum I found that the dry braking performance got marginally worse, but it was still more than adequate. But the braking...
Forum: Advocacy & Safety
03-04-12, 05:18 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

Different from what? I've never claimed that...

Different from what? I've never claimed that cycling is safer than driving on a per mile basis. Whether that is the correct metric to use is another question, and, as I said previously, there is a...
Forum: Advocacy & Safety
03-03-12, 07:45 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

I would agree that when figured on the basis of...

I would agree that when figured on the basis of risk per mile, the risk of bicycling is higher than from driving. But that doesn't dispute the idea that cycling is as safe as walking. Pucher and...
Forum: Advocacy & Safety
03-02-12, 10:55 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

This conclusion doesn't follow. I think that...

This conclusion doesn't follow. I think that cycling has similar risks as taking a walk, but I'd still like the risk of both activities to be reduced. Unfortunately substantial numbers of both...
Forum: Advocacy & Safety
10-26-11, 08:12 PM
Replies: 8,742
Views: 640,819
Posted By prathmann

Yes it is and that's why such a poll is...

Yes it is and that's why such a poll is meaningless.

Back in the 60s and early 70s I only personally knew one cyclist who was fatally injured. When hardshell helmets became popular by the late...
Showing results 1 to 42 of 42


 
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