Napkin math suggests you are wrong, the grand parent is right. I can't find the exact stats but in the US there are 2+ million injuries per year caused by road

Napkin math suggests you are wrong, the grand parent is right. I can't find the exact stats but in the US there are 2+ million injuries per year caused by road traffic crashes. We know there are around 300k signalized intersections [1]. If we estimate non-signalized intersections (ie. those with STOP signs) to 20x that number, that's 6 million non-signalized intersections. If 20% of injuries happen at intersections and are randomly distributed across intersections, then on average there will be 1 injury at a given intersection every 15 years. So yeah it is likely that "multiple injuries" have occured at mosts intersections in the country. [1] http://mutcd.fhwa.dot.gov/knowledge/faqs/faq_part4.htm#tcsgq3 http://mutcd.fhwa.dot.gov/knowledge/faqs/faq_part4.htm#tcsgq...