And it's pretty difficult to connect higher speed limits to specific deaths. But a new study from IIHS purports to do just that, saying that higher speed limits have caused 37,000 additional traffic deaths in the nearly quarter century that the study examined. Michigan, for one, raised speed limits to 75 on some highways in 2017. Some states have gone further, with speed limits of 80 mph in six states, and speed limits of 85 mph in one state (Texas). Farmer says it may not be politically possible to lower speed limits, but states should definitely say "enough is enough," and stop raising them.

Source: Forbes April 05, 2019 15:59 UTC