PennDOT Secretary Yasmin Gramian said Tuesday that PennDOT continues to see that roundabouts in Pennsylvania are saving lives and reducing the severity of crashes.

“While they’re not appropriate at every intersection, we’re glad they’re helping to make our roads safer,” Gramian said.

The Pennsylvania Department of Transportation announced that deaths, injuries and crashes overall decreased after 33 intersections were replaced with 36 roundabouts, according to the department.

PennDOT recently reviewed data for 36 roundabouts on state routes at intersections previously controlled by stops or signals. These roundabouts were selected based on the availability of accident data for at least three years before and after their construction. This makes a total of 387 data before years and 220 data after years.

The department’s data from 2002 to 2021 — based on crash reports submitted by police and weighted by the number of years before and after, but not by increased traffic volume — shows the following:

• The number of suspected serious injuries has decreased by 76%.

• Suspected minor injuries decreased by 22%.

• Possible/unknown damage has been reduced by 70%.

• The total number of failures decreased by 9%.

Unfortunately, PennDOT said there was one fatality at one of the roundabouts — but before the roundabouts were installed, there were three combined fatalities.

In addition to the 36 roundabouts that meet the selection criteria, another 38 roundabouts have been constructed on state highways, another 16 are under construction and 15 are in the final design stage.

Roundabouts included in the review are at the following intersections in Luzerne County:

• I-81 Exit 178, Airport Road interchange (three roundabouts), opened in 2015.

• Route 2008 (Middle Road) and Espy Street, opened in 2017.

• Route 415, Church Street, Lake Street and Main Street, opened in 2018.

• Route 2008 (Middle Road) and Kosciuszko Street, opened in 2018.

PennDOT says roundabouts are often installed to address intersections with safety concerns, but can also be installed to improve traffic flow and for other reasons, such as calming traffic and facilitating pedestrian mobility.

While roundabouts are safer and generally more efficient than traditional signalized intersections, PennDOT said they may not always be the best option due to topography or other reasons such as property impacts, capacity issues and proximity to other intersections .

Roundabouts are recognized by the Pennsylvania Transportation Innovation Council (STIC) as an innovation that has become standard practice in the transportation community. Pennsylvania STIC promotes the rapid implementation of proven, well-studied and documented state, regional, national and international technologies, tactics, methods and other innovations that are new to Pennsylvania. STIC also supports the implementation of the Federal Highway Administration’s Every Day Matters (EDC) innovation.

To teach Pennsylvanians how to navigate roundabouts, the department has created a video on how to use single and multi-lane roundabouts by car, bike or on foot. The video can be viewed by visiting the detour page on PennDOT’s website or by visiting the department’s YouTube channel.

Sign up for PennDOT statewide news and traffic alerts at — — or select a region under Regional Offices.

Information about the state’s infrastructure and the results the department provides to Pennsylvanians can be found at

Find planned and active PennDOT construction projects at —

Contact Bill O’Boyle at 570-991-6118 or on Twitter @TLBillOBoyle.

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