The video can be accessed by visiting the roundabout page on www.penndot.gov or
by visiting the department’s YouTube channel.
“Data shows that modern-day roundabouts reduce crash severity and injuries while improving traffic flow,” said PennDOT Secretary Leslie S. Richards. “This video illustrates how to navigate these intersections regardless of how you travel.”
A modern roundabout is a type of circular intersection where traffic flows continuously in a counterclockwise direction around a central island and where the entry traffic must yield to the circulating traffic. The Federal Highway Administration (FHWA) encourages implementing roundabouts as they have been proven to significantly improve safety and reduce traffic delays over
traditional stop- or signal-controlled intersections. In tandem with the FHWA’s recommendation, the Pennsylvania State Transportation Innovation Council (STIC) has prioritized implementing roundabouts as alternatives to traditional intersections when possible.
Crash rates and severity of at least three years of data from before and after installation for the state’s first 10 modern roundabouts built at previous traditional stop-sign or signal-controlled intersections showed that fatal crashes were eliminated (two to zero) and major-injury crashes were also
eliminated (four to zero). Additionally, moderate-injury crashes were reduced by 71 percent (seven to two) and minor-injury crashes by 25 percent (16 to 12) as well as the total number of crashes which dropped by 16 percent (63 to 53).
National studies have shown that modern roundabouts reduce fatal crashes by up to 90 percent and result in a 75 percent reduction in injury-causing crashes.
Modern roundabouts also improve pedestrian safety by allowing people to cross shorter distances with slower moving one-way traffic.
Modern roundabouts have been being built in the United States for less than 30 years and in Pennsylvania for less than 15 years. In Pennsylvania, there are currently 32 completed roundabouts, 20 under construction and at least 10 more expected to go to construction over the next two years. To learn more about roundabouts, visit www.penndot.gov and enter “roundabouts” in the search
bar.
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