As the state of Texas marks National Roundabouts Week, the Texas Department of Transportation (TxDOT) is being recognized for its push for safer, more innovative intersection designs. Recent reports indicate a substantial uptick in the development of roundabouts, with over 90 projects in the planning or early design phase, and 27 more in detailed design across nine TxDOT districts, as per TXDOT.
The focus on intersection safety is critical in a state where nearly a third of all fatal and serious injury crashes occur at these crossroads. TxDOT engineer Amanda Austin is at the forefront of this shift towards roundabouts which are celebrated for not only their durability in severe weather, but also their safety compared to traditional traffic light-controlled intersections. According to a TXDOT interview, roundabouts can reduce fatal crashes by up 90% by cutting out the possibility for head-on and right-angle collisions.
Another component of the state’s strategy involves implementing other non-traditional intersection designs like U-turn lanes, which have been shown to decrease fatalities and injuries by restricting dangerous left turns from side streets. "If we want to get to zero deaths on our roadways, we have to look at all kinds of different innovative approaches to reach that goal and roundabouts are certainly one way to do that," Austin told TXDOT.
Celebrated during National Roundabouts Week, September 22-26, an initiative by the Federal Highway Administration to promote their safety benefits, Texas shines with an estimated 661 roundabouts already in place, with roughly 860 innovative intersections in total. During this time, TxDOT aims to educate the public on how to navigate roundabouts safely, stressing the importance of understanding yield rules and proper signage.
The construction of roundabouts, however, is not without its complexities. As reported by TXDOT, Amanda Austin explains, "There is a lot more to installing a roundabout than the simple circle would suggest. You need it just big enough to accommodate trucks but not so big that people can drive too fast through it." To combat potential issues, TxDOT is also investing in education for both engineers and the general public, providing training on roundabout design and best practices as they continue to expand this infrastructure.
With the kickoff of National Roundabouts Week, Texas is actively delivering on its commitment to road safety. The surge in roundabout development, use of new planning tools, and increase in public outreach suggest Texas is banking on these circular intersections to significantly decrease crash rates and enhance the safety of its roads.
