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Vine Street Roundabout Corridor

WSP developed a corridor study that led to replacing traffic signals with roundabouts, which in turn improved traffic flow and is aimed to reduce the number and severity of accidents.

Location

  • Kansas, USA

Client

  • City of Hays

Project Status

  • Complete

The North Vine Street Corridor Study re-envisioned the gateway corridor to Hays, Kansas off Interstate 70. The area—having a history of serious injury crashes—had been the focus of over 20 years of study, with no solutions developed. The corridor has a complex mix of frontage roads, closely spaced intersections, uncontrolled intersections, and a lack of pedestrian and bicycle access.

WSP USA conducted an extensive corridor study to analyze safety, evaluate traffic operations using microsimulation modelling, and analyze bicycle, pedestrian, truck and business access along the corridor. An innovative roundabout corridor concept was developed focused on creating an access-managed roundabout corridor. The roundabout corridor includes four two-lane roundabouts with one “peanut-shaped” roundabout at a challenging, closely spaced intersection with a severe crash history. The concept also includes extensive improvements to bicycle and pedestrian access and access management throughout.

The project construction was completed in 2021. Since completion, the City of Hays has noted that traffic flows better, and none of the crashes that have occurred on the corridor have resulted in an injury or death.

Awards

  • Institute of Transportation Engineers International Excellence in Transportation Award, Traffic Engineering Category (2022)
  • Kansas Society of Professional Engineers Smoky Valley Chapter Outstanding Engineering Achievement (2021)

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