Traffic crashes cost the U.S. economy an astonishing $991 billion a year – over 1% of the nation’s GDP. [[1](https://www.aeaweb.org/articles?id=10.1257/app.20140100)] [[3](https://academic.oup.com/sf/article/101/1/506/6372946)] Making the roads safer can have an enormous impact on our economy, protecting individuals and businesses alike.