The highest posted limit in Utah is currently 80mph. ↩ Footnote 10 In Washington State, maximum speed limits on highways or portions of highways may be posted as high as 75 mph if based on a …

Speed limit laws, which date to 1901, traditionally have been the responsibility of the states, but the national maximum speed limit in place in the 1970s and 1980s effectively established maximum …

Sep 3, 2025 · These speed limits influence travel speeds, but they don’t necessarily bring them down to levels that low; many people routinely drive 5 to 10 mph above the posted limit. Small changes in …

A maximum speed limit of 12 miles per hour was enacted in Connecticut in 1901 (Miller, 1950). As improvements in motor vehicle design led to higher and higher potential speeds, most other states …

Jun 12, 2024 · Contrary to the conventional wisdom, more than 60% of drivers would accept intelligent speed assistance that provides a warning when they exceed the posted limit, a new IIHS survey shows.

Apr 4, 2019 · Rising speed limits over the past 25 years have cost nearly 37,000 lives, including more than 1,900 in 2017 alone, a new IIHS study shows.

Intelligent speed assistance (ISA) takes the speed limit into account. ISA identifies speed limits using a camera that reads posted speed limit signs and/or GPS linked to a database of speed limits. …

Mar 28, 2023 · In downtown Seattle, lowering default speed limits reduced the likelihood that a crash would involve an injury by a fifth on arterial roads.

Aug 13, 2024 · The speed limit is generally 25 mph. I wouldn’t have predicted this going in, but the ISA system kicked in to restrict my speed repeatedly in this neighborhood, where I think of myself as …

May 16, 2023 · A pilot program in Denver, for example, barred e-scooters from riding in vehicle travel lanes where the speed limit for motor vehicles was greater than 30 mph. Improvements in e-scooter …