At least some things have improved, but more needs to be done. It is bad enough during a single car accident people are killed, a lot of the time because they do not have a seat belt on & are ejected from the vehicle, but at least with the new divided 4-lane it has reduced or eliminated the amount of head on collisions.
I think to improve things the law makers need to change the seat belt law to include everyone in the vehicle, both front & back, including containing pets as they can become projectiles. and we need law prohibiting cell phone use while driving too.
http://www.bikeiowa.com/asp/hotnews/...sp?NewsID=1938