Intersection conflict warning systems (ICWS) are a proven tool for reducing crashes at rural intersections by alerting drivers to oncoming or crossing traffic. SRF has played a leading role in deploying these systems throughout the Midwest, providing systems engineering, design, and construction oversight to ensure performance and safety.
MnDOT RICWS Program – Largest Regional Deployment
SRF’s most extensive ICWS involvement has been with the Minnesota Department of Transportation (MnDOT) on its Rural Intersection Conflict Warning System (RICWS) deployment program. SRF served as the lead engineer for design and construction for the following projects:
- RICWS I (Design-Build) – Engineering and construction oversight at 50 locations
- RICWS II (Design-Bid-Build) – Engineering and construction oversight at five additional sites
In both phases, SRF ensured that each system was tailored to site-specific needs while maintaining consistent performance standards across locations.
Multi-State ICWS Expertise
Beyond MnDOT, SRF has supported ICWS implementation for several agencies across the region:
- Carver County, MN – Systems engineering and design
- Iowa DOT – Systems engineering and design
- South Dakota DOT – Systems engineering and design
- St. Louis County, MN – Systems engineering
- Wisconsin DOT – Systems engineering and design
- Wayzata High School, Plymouth, MN – Site-specific ICWS design
- Minnesota Local Road Research Board (LRRB) – Development of the Intersection Safety Technologies Guidebook
SRF’s expertise allows agencies to deploy smart traffic management solutions that are reliable, cost-effective, and built for long-term safety improvements.
Resource Links:
MnDOT RICWS Program
Internal Category:
Traffic & Technology
More from:
Minneapolis, MN
Saint Paul, MN

