Maximum posted speed limits - IIHS-HLDI
网页2019年11月1日 · 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 traffic and engineering study, effective August 2015. ↩. Footnote 11 In Wyoming, the speed limit may be increased to 80 mph on specific …
Speed - IIHS-HLDI
网页Currently, 22 states have maximum speed limits of 70 mph, and 11 states have maximum speed limits of 75 mph on some portion of their roadway systems. On some sections of interstates in eight states, speed limits are 80 mph. In October 2012, a 41-mile stretch of Texas State Highway 130 opened with a speed limit of 85 mph.
Speed limit increases are tied to 37,000 deaths over 25 years - IIHS …
网页2019年4月4日 · Rising speed limits over the past 25 years have cost nearly 37,000 lives, including more than 1,900 in 2017 alone, a new study by the Insurance Institute for Highway Safety shows. The research, an update of a 2016 analysis, calls attention to the trade-off between a few minutes of saved travel time and the increased risk of fatalities.
Average speeds increase after Utah raises limit to 80 mph - IIHS …
网页2016年6月23日 · Average speeds increase after Utah raises limit to 80 mph. June 23, 2016. A new study on the effects of speed limit increases in Utah adds to the abundant evidence that raising speed limits results in higher travel speeds and more vehicles exceeding the new limit. It also undercuts the claim that raising limits reduces speed differences among ...
City drivers slow down for lower speed limit in Boston - IIHS-HLDI
网页2018年8月28日 · City drivers slow down for lower speed limit in Boston. Lowering the speed limit by 5 mph on city streets can improve safety for motorists, pedestrians and bicyclists alike by reducing speeding, new research by the Insurance Institute for Highway Safety indicates. Released today at the Governors Highway Safety Association (GHSA) 2018 …
Most drivers would be OK with anti-speeding tech in ... - IIHS-HLDI
网页2024年6月12日 · The little icon with the local speed limit that pops up in the corner of the Apple Maps, Google Maps and Waze apps is a simple version. (Waze and some other less well-known apps also offer additional ISA functions.) More robust ISA systems sound a warning or flash an alert when the driver exceeds the limit — or when they exceed it by …
New crash tests show modest speed increases can have deadly …
网页2021年1月28日 · Small speed increases can have huge effects on crash outcomes, as shown in new crash tests by the AAA Foundation for Traffic Safety, the Insurance Institute for Highway Safety (IIHS) and Humanetics. The safety organizations conducted crashes at three different impact speeds (40, 50 and 56 mph). They found the slightly higher speeds …
Lowering speed limits makes Seattle streets safer - IIHS-HLDI
网页2023年3月28日 · Lowering speed limits makes Seattle streets safer. March 28, 2023. Seattle Department of Transportation. Crashes on Seattle streets were less likely to cause injuries after the city lowered speed limits, a new study by the Insurance Institute for Highway Safety shows. “When we talk about the Safe System approach, we always stress that nobody ...
网页Results: A 5 mph increase in the maximum state speed limit was associated with an 8.5% increase in. fatality rates on interstates/freeways and a 2.8% increase on other roads. In total during the 25-year study period, there were an estimated 36,760 more traffic fatalities than would have been expected if maximum speed limits had. not increased ...
Lowering the speed limit from 30 to 25 mph in Boston: effects on ...
网页Results: The speed limit reduction was associated with a 0.3% reduction in mean speeds (p=0.065), and reductions of 2.9%, 8.5%, and 29.3% in the odds of vehicles exceeding 25 mph, 30 mph, and 35 mph, respectively. All these reductions were statistically significant. Conclusions: Lowering the speed limit in urban areas is an effective ...