Advanced versions of systems like this can report crash severity to help first responders make triage decisions. Advanced crash notification systems have clear benefits: if every vehicle/driver had an ACN system, an additional ~2,700 vehicle occupants who need a Level I or II trauma center could receive it annually in the United States, and ~162,000 annually would not be sent to a Level I or II trauma center who didn't need it [1].

1: https://doi.org/10.1016/j.jamcollsurg.2016.03.028