States rethink a long-held practice of setting speed limits based on how fast drivers travel
Growing safety concerns and a rise in road deaths have prompted states and federal agencies to reconsider the 85% speed limit rule, with studies showing fatality risks increase 8.5% per 5 mph rise on highways.
- Amid a recent spike in road deaths, the Federal Highway Administration is de-emphasizing the '85% rule' of setting speed limits based on how fast most vehicles travel on a road.
- Cities like Madison, Wisconsin and Seattle have lowered speed limits on local streets, resulting in fewer crashes.
- Experts argue that the '85% rule' creates a 'feedback loop' where higher speeds lead to even higher posted limits.
129 Articles
129 Articles
Era of drivers dictating speed limits may end
Rose Hammond pushed authorities for years to lower the 55 mph speed limit on a two-lane road that passes her assisted living community, a church, two schools and a busy park that hosts numerous youth sports leagues.
US States Rethink Practice Of Setting Speed Limits Based On How Fast Drivers Travel
Rose Hammond pushed authorities for years to lower the 55 mph speed limit on a two-lane road that passes her assisted living community, a church, two schools and a busy park that hosts numerous youth sports leagues.

States rethink a long-held practice of setting speed limits based on how fast drivers travel
Road safety activists and some states are pushing to depart from a longstanding rule that sets speed limits in the United States based largely on how fast drivers actually travel. This is due to the 85% rule, which ties speed…
States rethink setting speed limits based on how fast drivers travel
But supporters of the rule say it provides the safer approach by limiting the speed discrepancy between drivers who abide by the posted sign and those who ignore it because the road design allows them to do so.
Coverage Details
Bias Distribution
- 75% of the sources are Center
Factuality
To view factuality data please Upgrade to Premium