Hacker News new | ask | show | jobs
by takk309 2688 days ago
Generally it is based on the relative costs of a non-injury vs other injury types. So the weight is equal to cost of fatality divided by cost of non-injury. Keep in mind that these values vary from region to region. We use the 1, 3, 8 grouping because the State uses it and by being consistent we can compare different areas more easily.