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Sun Prairie Main Street RRFB


City of Sun Prairie | Tom Veith, Engineering Director


Sun Prairie, Wisconsin



KL Contact

Kevin Wehner, PE

Project Details

  • Safety Studies
  • Traffic Data Collection
  • Rectangular Rapid Flashing Beacons (RRFB)
  • Field Survey
  • Access Management
  • Solar Powered Infrastructure
  • ADA Compliance
  • Construction Cost Estimates

Addressing Urgent Pedestrian Safety Needs

KL Engineering addressed urgent pedestrian safety needs by completing a project on West Main Street, west of Clarmar Drive. This initiative followed the 2018 West Main Street Traffic Study, which examined the entire corridor from O’Keeffe Street to Grove Street.

This segment of Main Street was the location of many concerning pedestrian-vehicle interactions, including one that involved a pedestrian fatality. To address safety concerns, the project commenced with a concise traffic safety and operations study. Data was collected, including video footage of vehicular and pedestrian movements. Remarkably, the footage captured a pedestrian-vehicle collision. Although fortunate that no serious injuries occurred, the incident underscored the need for immediate improvements.

KL Engineering proposed a mid-block pedestrian crossing at the high-demand location, incorporating a raised median, rectangular rapid flashing beacons (RRFB), and the closure of a private driveway. Sun Prairie then engaged with the KL staff to complete the design of the recommended improvements. Our multidisciplinary teams — roadway, site, and electrical — worked seamlessly, supported by our survey team, resulting in a successful design.

The project brought immense satisfaction to KL staff due to its critical impact. Additionally, witnessing the RRFB in action along Main Street further validated our efforts.

Sun Prairie Main Street RRFB [Photos]