> What's interesting to me is that cyclist injuries went down after these laws were passed. The study[1] where they stated that said it only decreased in the y

> What's interesting to me is that cyclist injuries went down after these laws were passed. The study[1] where they stated that said it only decreased in the year after the law was passed. They didn't check what happened in subsequent years. > At least according to the wiki. Naively, I would think they'd go up, or stay level. Do you have any hypothesis for why that may be? The study they used to justify that conclusion compared two cities in two different states in different parts of the US. They didn't have before and after data after the law was enacted to make a direct comparison (since the law was enacted in the early 1980s). In my opinion, the study doesn't really support the conclusion that not coming to a full stop is safer. It would have been better had the study compared multiple locations with similar characteristics over the same time period. [1] https://meggsreport.files.wordpress.com/2011/09/idaho-law-jasonmeggs-2010version-2.pdf https://meggsreport.files.wordpress.com/2011/09/idaho-law-ja...