About Us

Contact Us


enterprise.prog.org  |   Log In

Main Menu

About Us
Work Plans
Management Plan
How to Join
Progress Reports
Contact Us
Helpful Links

Intersection Conflict Warning Systems (ICWS) Support and Outreach
Phase 3

Intersection crashes continue to represent a significant share of transportation fatalities and serious injuries throughout the country. In addition to intersection lighting, signing and geometric improvements, organizations have turned to Intelligent Transportation Systems (ITS) as another tool for improving safety. Over the past several years, a variety of mainline and cross street oriented intersection conflict warning systems (ICWS) have been developed and tested in many states across the country. Some systems have been developed using local expertise, while others have been supported by the USDOT Cooperative Intersection Collision Avoidance Systems program. No specific guidance has been available for these systems in regard to placement, size, messaging, failsafe, etc. This has resulted in a fairly broad range of approaches and with the states’ growing experience there is now an opportunity to work together in moving toward standardization.

The purpose of the project was to continue coordination with national standards groups, industry associations and other pooled fund programs that have been engaged through the ENTERPRISE ICWS work. Phase 3 also continued to provide ICWS deployment support to ENTERPRISE members.

Webinar Series

A series of webinars were hosted by ENTERPRISE throughout 2015. They were designed to facilitate peer exchange on both introductory and advanced topics. For more information about the webinars contact Ginny Crowson at crowson@acconsultants.org.

  • Webinar 4 – ICWS Advice from the Experts
    November 17, 2015 
    This final webinar featured a panel of experts from Design Electric, WSB, Iowa Department of Transportation, North Carolina Department of Transportation and St. Louis County Minnesota. Panelists offered expert advice about ICWS regarding design, construction, operation and maintenance.
  • Webinar 3 – Liability, Reliability and Credibility - Challenges for ICWS
    June 25, 2015, 2:00 – 3:30 p.m. (Central) 
    Jon Jackels from SRF Consulting discussed how reliability and credibility can be engineered into ICWS to responsibly address concerns over liability while reaping the benefits of safety.
  • Webinar 2 FHWA Development of Crash Modification Factors (DCMF) Safety Evaluation of ICWS
    April 23, 2015, 2:00 – 3:30 p.m. (Central)
    Scott Himes from VHB presented the results of a national safety evaluation of ICWS sponsored by the Evaluation of Low Cost Safety Improvements Pooled Fund Study.
  • Webinar 1 – ICWS 101: An Overview of the System
    February 26, 2015, 2:00 – 3:30 p.m. (Central) 
    Ken Hansen from the Minnesota Department of Transportation (MnDOT) introduced the concept of ICWS as an ITS safety solution and describe the current state of ICWS resources and use. Ken is a senior engineer with MnDOT and is the project manager for the department’s Rural ICWS deployment project.

Related Documents/Links

For a listing of related documents and links to this intersection conflict warning systems ENTERPRISE project click here. For more information about the other phases of ENTERPRISE work with intersection conflict warning systems go to:

  • Phase 1 - Developing Consistency in ITS Safety Solutions - ICWS: The purpose of this project was to develop a consistent approach for accelerated, uniform deployment and further evaluation of intersection conflict warning systems (ICWS), and to recommend preliminary standards for MUTCD consideration. This work was initiated through a webinar and two in-person workshops. Participants included ENTERPRISE pooled fund states, other states that have deployed systems, FHWA, NCUTCD, AASHTO and NACE.
  • Phase 2 - ICWS Coordination and Systems Engineering: This project furthered supported the standardization of ICWS by coordinating among the various national standards and association groups, and by developing a concept of operations and system requirements for the four types of ICWS identified in the Design and Evaluation Guidance for Intersection Conflict Warning Systems developed in Phase 1. 




Copyright 2015 by the ENTERPRISE Program. All Rights Reserved.