I promise you that most bicyclists are also more worried about you hitting us with your car than we are about hurting your car. Although in my experience riding a bike or driving a car in traffic in D.C., I don't know that I'd say the cyclists are the only unpredictable people. |
I'm not eager to gainsay it, I'm alarmed by the figures, which I hadn't seen before. I had assumed they reduced injuries and deaths by more than that. |
pp here. reading comprehension is not your strong suit. i said the only thing that worries me, as a driver, is hitting a bicyclist because it's impossible to predict which traffic laws they will choose to obey. |
There's no single thing we could do that's easier, cheaper and more effective in reducing head injuries than requiring cyclists to wear helmets. And yet the bike lobby (while claiming safety is their priority) is like, "Wah, I don't want to wear a helmet." |
|
Still repeatedly ignoring that street safety isn't just about kids on bikes.
I think that's the 3rd or 4th time I've made this comment. |
I think the issue is that no one knows what you're talking about. |
If you can’t control your vehicle please stick to mass transit. We aren’t living in a dystopia with swarms of cyclists violating traffic laws. |
thankfully, very few people in dc are into bikes. still sucks to drive near them. i try to avoid them. |
Of course you are. You keep pretending than an ebike is not a moped along with loudly proclaiming that rules and regulations should be enforced. The brazen flaunting of the most basic rules by ebike enthusiasts is the easiest and most basic thing to enforce. Rules apply to everyone. Not just the people you don't like and are trying to punish. |
I assume you are a moped rider and a speeder? |
And god help us when you don't. |
no, as in, if there's a cyclist on the road that i'm on, i look to take an alternative route. i dont want to be anywhere near them. id rather be among cars. at least you know what they're going to do. |
If you don’t think the data demonstrating the efficacy of helmets is strong enough, you should see the r-squared for drug trials. Adopting the same language and posture as anti-vaxers is a strong indicator that you are an extremist. |
+1 |
The authors of this article didn't do any research. They just cited previous research that shows that helmets are 75% effective in preventing injury and death, and counted the number of injuries and deaths per year, subtracted out the current level of helmet usage and calculated what that would be if helmet usage were 100%. They accept the 75% effectiveness number unquestioningly.* For the 75% figure they cite the 1989 Thompson, Rivers and Thompson study. If you do any work at all in this field you're familiar with this study, all of the inflated claims of helmet effectiveness can be traced back to this study. This study has been debunked; when other researchers tried to replicate it they were unable to reproduce the results, which is a foundational principle of the scientific method. There is a federal law called the Data Quality Act, which requires that if federal agencies make scientific claims in their public statements that those claims be backed up by peer-reviewed science. In 2013 -- after this study was published -- a complaint was filed with the CDC and the NHTSA that research that relied upon the 1989 Thompson, Rivers and Thompson study violated the Data Quality Act and should not be promoted on a taxpayer-supported website. The CDC and NHTSA both initially resisted, but ultimately upheld the complaint and agreed to remove all affected research. Clearly they either didn't catch it all or have backslid since then. You can read more here: https://www.thewashcycle.com/2013/06/nhtsa-admits-helmet-effectiveness-claim-violates-data-quality-act.html The best comprehensive study of the effectiveness of helmets was published in 2011 by Rune Elvik in the journal "Accident Analysis and Prevention" ( available at http://www.cycle-helmets.com/Elvik2011_helmet_reanalysis.pdf . His conclusion:
There are many theories as to why the measures of the effectiveness of helmets have declined over the past thirty years. There is a well-known scientific phenomenon that as the true value of a figure being measured becomes better known, the published estimates become closer and closer to the actual value, because numbers too far from the range of what reviewers expect don't get published. In the case of bicycle helmets in particular I believe that better record-keeping over the past 30 years is a major factor. Many studies rely upon case reports by the doctor who treated the patient, and it turns out that often by the time the doctor sees the patient the EMT's have removed the helmet and the doctor doesn't know if the patient was wearing a helmet. It was only once this research started being published that people started caring about accurately recording whether the patient had been wearing a helmet. Elvik thinks that newer helmets are thinner and less effective than older ones, but I'm skeptical. The CPSC standard hasn't changed. *(As an aside, I can't believe adults get paid to produce "research" of this quality.) |