Another video from IU professor of pediatrics Aaron Carroll cites research that marathons and similar traffic-disrupting events lead to increased death rates among older people who are delayed in getting to a hospital.

It seems likely that rush hour traffic would have a similar effect, but by closing roads marathons might be even more dangerous. This doesn’t mean that there should never be marathons or parades or the like, only that planners ought to think about how to minimize disrupting emergency services.

by