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Search: Posts Made By: trombone
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09-13-10, 05:54 AM
Replies: 3,243
Views: 152,951
Posted By trombone

Well, another new thread! Goodness. You'll...

Well, another new thread! Goodness.

You'll be pleased to hear that the issue of our mandatory helmet legislation has been getting quite a lot of media attention recently. This is in part due to...
08-19-10, 06:41 AM
Replies: 1,126
Views: 44,879
Posted By trombone

It's very encouraging that this issue is starting...

It's very encouraging that this issue is starting to bubble up into the mainstream press; I think it's in part because there is a cycling boom going on, and cycling generally has become quite...
08-18-10, 04:41 PM
Replies: 1,126
Views: 44,879
Posted By trombone

Hello! It's been a while. A new...

Hello! It's been a while.



A new research article was published this week that documents the rate of head injuries among cyclists in NSW, Australia from 1988 to 2008. MHL were introduced in...
01-05-10, 05:37 PM
Replies: 1,634
Views: 68,909
Posted By trombone

Given that everyone seems to keen on anecdotes,...

Given that everyone seems to keen on anecdotes, perhaps I could offer one.

I live in Australia, a place where there are MHL. Riding without a lid can attract a $53 fine; last year the police...
01-03-10, 03:07 PM
Replies: 1,634
Views: 68,909
Posted By trombone

I often wear a wide-brimmed hat when riding...

I often wear a wide-brimmed hat when riding casually, for example popping to the shops. Something like this:
http://www.akubra.com.au/products.html

This is the skin-cancer capital of the world...
11-25-09, 03:09 AM
Replies: 1,634
Views: 68,909
Posted By trombone

Whilst riding home and mulling further on this, I...

Whilst riding home and mulling further on this, I realise that the last sentence of what I wrote above is incorrect; you cannot use MHL statistics to demonstrate risk compensation that specifically...
11-25-09, 02:11 AM
Replies: 1,634
Views: 68,909
Posted By trombone

Hello. Sorry I'm not around much, I'm very busy. ...

Hello. Sorry I'm not around much, I'm very busy.

Here's some interesting stuff on risk compensation:
http://psyc.queensu.ca/target/chapter07.html

Another interesting part of the same book is...
09-19-09, 06:01 PM
Replies: 1,634
Views: 68,909
Posted By trombone

http://www.youtube.com/watch?v=YdoE2YCvwdM

http://www.youtube.com/watch?v=YdoE2YCvwdM
07-15-09, 03:50 PM
Replies: 1,634
Views: 68,909
Posted By trombone

Oh dear. It's all getting a bit acrimonious. ...

Oh dear. It's all getting a bit acrimonious.

I will answer your question, Brian, but perhaps not for a day or so as I am busy at work right now.

In the meanwhile, everyone remember that if we...
07-15-09, 12:08 AM
Replies: 1,634
Views: 68,909
Posted By trombone

Actually. I see the technical discussion being...

Actually. I see the technical discussion being driven by you and John (are you related, BTW? Just curious!). Personally, I don't engage in those discussion often, as I don't have the time nor the...
07-14-09, 05:11 PM
Replies: 1,634
Views: 68,909
Posted By trombone

A-ha. I thought this was what you meant. In order...

A-ha. I thought this was what you meant. In order to answer this question, you do need to consider the wider issues, not just the engineering ones.

I just wanted to check; it as possible you meant...
07-14-09, 01:14 AM
Replies: 1,634
Views: 68,909
Posted By trombone

OK, possibly a misunderstanding on my part....

OK, possibly a misunderstanding on my part. However, I didn't really have philosophy or religion in mind when I talked about it being multi-faceted. It's more about psychology, actually.

Perhaps...
07-13-09, 11:29 PM
Replies: 1,634
Views: 68,909
Posted By trombone

At best, common sense gives a starting...

At best, common sense gives a starting hypothesis. It is the necessary to demonstrate that the hypothesis is true. There is a real danger in your words around 'informed common sense'; it sounds as...
07-13-09, 09:33 PM
Replies: 1,634
Views: 68,909
Posted By trombone

I take great exception to the implication that...

I take great exception to the implication that 'scepticism' is a bad thing, and that it in some way equates to 'being a true believer'.(1)

In fact, proper scepticism is the antithesis of 'true...
07-08-09, 03:28 AM
Replies: 1,634
Views: 68,909
Posted By trombone

I had to chuckle at this, given that one of the...

I had to chuckle at this, given that one of the most often-quoted researchers on the pro-helmet side was a helmet advocate prior to starting his research, and receives funding from the helmet...
07-03-09, 09:23 PM
Replies: 1,634
Views: 68,909
Posted By trombone

Thanks, ILTB! Exactly. Helmets are...

Thanks, ILTB!



Exactly. Helmets are really a side issue; if we want to see significant step-change in terms of cycling acceptance and safety we need to develop a significantly less auto-centric...
07-03-09, 03:12 AM
Replies: 1,634
Views: 68,909
Posted By trombone

We seem to be back into a rather futile anecdote...

We seem to be back into a rather futile anecdote exercise, with some slightly antagonistic argument thrown in for good measure. Oh well.

One thing I do have to take issue with in your post, John,...
06-26-09, 04:06 AM
Replies: 1,634
Views: 68,909
Posted By trombone

Hello John! ...

Hello John!
http://tromboneforum.org/Smileys/otjf/hi.gif

I'm constantly amazed at the low quality of research published into bike helmets. I'm also somewhat puzzled that you choose to cite so...
06-19-09, 08:35 PM
Replies: 1,634
Views: 68,909
Posted By trombone

Here my two anecdotes. For background, helmet...

Here my two anecdotes.
For background, helmet use is compulsory in Australia, so when I moved here several years ago i started wearing one; at that point it didn't really occur to me that it was a...
06-18-09, 07:23 PM
Replies: 1,634
Views: 68,909
Posted By trombone

Your summary of that statement (that no life has...

Your summary of that statement (that no life has been saved by a helmet) is not accurate. The statement does not say that no life has been saved. It says that there has been no net saving.

Do you...
05-10-09, 07:17 PM
Replies: 4,978
Views: 205,842
Posted By trombone

Especially when coupled with a sedentary...

Especially when coupled with a sedentary lifestyle, it also raises the likelihood of a massive stroke (http://www.webmd.com/smoking-cessation/news/20060217/smoking-time-amount-boost-stroke-risk),...
05-10-09, 02:08 AM
Replies: 4,978
Views: 205,842
Posted By trombone

Reducing cycling crashes? Somehow removing the...

Reducing cycling crashes? Somehow removing the barriers to helmet use will reduce the number of crashes?

Helmets don't prevent crashes. It does seems as if some on the 'anti-choice' side of the...
05-09-09, 04:53 PM
Replies: 4,978
Views: 205,842
Posted By trombone

Thanks for the clarification John. Yes, I was...

Thanks for the clarification John. Yes, I was aware of that - the paper clearly takes as it's starting point that helmets save lives to the extent supported by the 'hospital admission' studies, and...
05-09-09, 01:38 AM
Replies: 4,978
Views: 205,842
Posted By trombone

Thanks for the info, John. I haven't read the...

Thanks for the info, John. I haven't read the paper, but I'm sure the stuff about how to promote helmets, and barriers to their uptake, is interesting.

This aspect of the paper, though, is only...
05-06-09, 01:51 AM
Replies: 4,978
Views: 205,842
Posted By trombone

Indeed; that helmets can offer useful protection...

Indeed; that helmets can offer useful protection in some circumstances should be acknowledged.

By the same token, it should also be acknowledged that in other circumstances they can lead to a...
04-29-09, 09:46 PM
Replies: 4,978
Views: 205,842
Posted By trombone

Hold the front page! Cyclists get injured...

Hold the front page! Cyclists get injured sometimes!

I'm not quite sure what posting this is designed to do, John.

Studies looking at the effectiveness of helmets are interesting, as are...
04-20-09, 08:21 AM
Replies: 4,978
Views: 205,842
Posted By trombone

Actually I agree with this too. Far to many...

Actually I agree with this too. Far to many cycling interventions are counter productive. However, I do know that building bike lanes etc does encourage more people to cycle, as they believe it makes...
04-20-09, 12:59 AM
Replies: 4,978
Views: 205,842
Posted By trombone

I haven't had a chance to look at this,m nor dig...

I haven't had a chance to look at this,m nor dig out the other report I mentioned, Ive been a bit busy. But I'd be very interested in Dr de Jong's response, if he makes one.

One thing I would say...
04-18-09, 03:46 PM
Replies: 4,978
Views: 205,842
Posted By trombone

A couple of papers that you dug out for us, John,...

A couple of papers that you dug out for us, John, and referenced a while back (sorry, haven't bothered to go and find them yet) indicated that, for accidents involving motor vehicles, whether the...
04-17-09, 05:38 PM
Replies: 4,978
Views: 205,842
Posted By trombone

Thanks for the clarification; what you say makes...

Thanks for the clarification; what you say makes perfect sense.

Interestingly, I find I do risk compensate with a helmet. From time to time I make a point of cycling without a helmet (helmets are...
04-17-09, 12:20 AM
Replies: 4,978
Views: 205,842
Posted By trombone

Testing our intuitions scientifically is a very...

Testing our intuitions scientifically is a very worthwhile exercise, and is the basis of a lot of science, I agree.

However, when the science reveals that reality works somewhat differently from...
04-16-09, 09:07 PM
Replies: 4,978
Views: 205,842
Posted By trombone

Intuition and common sense are very poor guides -...

Intuition and common sense are very poor guides - the world around us is frequently highly counter-intuitive. Try the 'Monty Hall' problem on a few people to see this in action. Well designed,...
04-15-09, 05:23 PM
Replies: 4,978
Views: 205,842
Posted By trombone

Funnily enough, there has been meaningful...

Funnily enough, there has been meaningful discourse in this thread, and people have developed their thinkin as a result.

To give two examples; I became much less worried about rotational forces...
04-13-09, 09:12 PM
Replies: 4,978
Views: 205,842
Posted By trombone

Actually you can't divide a compounded risk by...

Actually you can't divide a compounded risk by the time period to get the annual risk like that. You need to back out the cumulative effect (like compound interest) which would yield a much lower...
04-11-09, 01:36 AM
Replies: 4,978
Views: 205,842
Posted By trombone

Hmmm. I'd have to look at the whole thing to see...

Hmmm. I'd have to look at the whole thing to see the calculation in context.

What I can imagine using those two stats for is to calculate the costs of medical treatment for people who don't wear...
04-06-09, 08:08 PM
Replies: 4,978
Views: 205,842
Posted By trombone

Yep, the case is closed on MHL. I sometimes worry...

Yep, the case is closed on MHL. I sometimes worry though that in terms of promotion too much money is spent on helmet advocacy, to the detriment of other campaigns which could be run in their place...
04-06-09, 05:16 PM
Replies: 4,978
Views: 205,842
Posted By trombone

I'm not sure which studies you are reading, but...

I'm not sure which studies you are reading, but there are plenty of reputable, population-level studies that show that cycling participation drops dramatically when MHL are introduced. These data are...
03-30-09, 09:53 PM
Replies: 4,978
Views: 205,842
Posted By trombone

I've linked to a number of studies outlining the...

I've linked to a number of studies outlining the drop in cycling that resulted from mandatory helmet legislation in Australia - a drop that was felt most amongst utility cyclists (eg girls cycling to...
03-24-09, 02:20 PM
Replies: 4,978
Views: 205,842
Posted By trombone

Doctors study how to treat head injuries....

Doctors study how to treat head injuries. Somewhat different thing, eh?
03-20-09, 10:55 PM
Replies: 4,978
Views: 205,842
Posted By trombone

I'm obviously not explaining why I mean by...

I'm obviously not explaining why I mean by 'context' enough. Comparing helmeted riders with non-helmeted riders isn't context. It's simply a comparison between two different groups (I don't want to...
03-19-09, 06:23 PM
Replies: 4,978
Views: 205,842
Posted By trombone

I'm still not convinced that it is a 'reasonable...

I'm still not convinced that it is a 'reasonable assumption'. Indeed, the whole point of research is that one avoids assumptions. The conclusion in the abstract you quote smacks of a research who...
03-19-09, 04:02 PM
Replies: 4,978
Views: 205,842
Posted By trombone

I think you're being a bit sensationalist, John,...

I think you're being a bit sensationalist, John, when Talking about people 'dying needlessly'. Every day, people die because they chose to do something that has risks, and they are unlucky. They used...
03-18-09, 03:33 PM
Replies: 4,978
Views: 205,842
Posted By trombone

[/QUOTE] Leaving aside the rather worthless...

[/QUOTE]

Leaving aside the rather worthless comparisons between ATV accidents, different helmets and bicycles, the last line of this just kind of sums up the weird nature of these types of...
Forum: Commuting
03-10-09, 03:51 PM
Replies: 31,391
Views: 1,053,260
Posted By trombone

Lovely ride today. Blue sky, not too warm. I...

Lovely ride today. Blue sky, not too warm.

I took a different route home the other day, with a colleague. Quite nice to take a longer route, except he rides a mountain bike, and at one point...
03-08-09, 03:07 PM
Replies: 4,978
Views: 205,842
Posted By trombone

I agree with your last post, John. But I can't...

I agree with your last post, John. But I can't help feeling that for every parent like yourself who lives somewhere where cycling is genuinely a problem there are dozens living places where it would...
03-08-09, 01:58 AM
Replies: 4,978
Views: 205,842
Posted By trombone

Thanks for the considered response, John. Yes, I...

Thanks for the considered response, John. Yes, I agree that the report (or the recommendations at least) are pretty blatantly biased towards increasing the ridership numbers for school buses.

Also...
03-07-09, 08:03 PM
Replies: 4,978
Views: 205,842
Posted By trombone

John, Many thanks for the link to the report...

John,

Many thanks for the link to the report on school transportation. It is a very interesting document, which I encourage everyone to read.

It presents some high quality research in terms of...
03-01-09, 02:58 PM
Replies: 4,978
Views: 205,842
Posted By trombone

I live in a country with mandatory helmet laws...

I live in a country with mandatory helmet laws for all. They are enforced - the cops dole out tickets on a regular basis (much more often, I might add, than for other cycling infractions such as...
02-21-09, 04:54 PM
Replies: 4,978
Views: 205,842
Posted By trombone

The stairs in my house do not have a handrail....

The stairs in my house do not have a handrail. Should I wear a helmet when using them?
01-23-09, 11:31 PM
Replies: 4,978
Views: 205,842
Posted By trombone

Interesting - thanks John. Here's a thought....

Interesting - thanks John.

Here's a thought. That site concludes that, excluding the most reckless cyclists, cycling is between 3x and about 10x more dangerous that driving per mile travelled.
...
Showing results 1 to 50 of 425
 


 
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