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So your point is that Amsterdam is already more safe to ride a bike in, so wearing a helmet doesn't add safety anymore, whereas in Seattle it does? I mean if th
by roel_v 11y ago
So your point is that Amsterdam is already more safe to ride a bike in, so wearing a helmet doesn't add safety anymore, whereas in Seattle it does? I mean if this is really what you're claiming, then I hope I don't have to spell out the flaws in that argument.
- chiaro 11y agoNo need to be curt. He's simply saying that if Amsterdam is a much safer and convenient city for cyclists, one would expect both higher participation and lower incidence of injuries. A comparison of these metrics across these two cities would therefore be dominated by non-helmet-enforcement effects, and therefore it's more difficult to tease out the causal relationships than to simply compare the top level statistics.