I rode with my friend Eric after work today. We rode about 23 miles, mostly on a bike trail. He drives to work and brought his bike with him. He mentioned that he was about halfway to work this morning when he realized that he had forgotten his helmet. He turned around and went back and got it. I told him that that may not have been the best decision from a safety standpoint.
I believe that riding with a helmet is safer than riding without one, So turning around made his bike ride safer. But what about the extra 10 miles he drove? Obviously driving has a risk associated with it so driving 10 miles is less safe than not driving that distance.
Any actuaries want to weight in on this?
(I don't know what the helmet laws are in St. Louis so let's leave them out of this problem.)
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