Intersection Control Evaluation (ICE) Guide

Many state DOTs have developed Intersection Control Evaluation (ICE) policies to objectively screen alternatives (e.g., traffic signal, roundabout, all-way stop, and innovative intersection design) and identify an optimal geometric and control solution for an intersection. According to the FHWA’s ICE webpage (, these policies can promote (a) Implementation of safer, more balanced and more cost-effective solutions, (b) Consistent documentation that improves the transparency of transportation decisions, (c) Increased awareness of innovative intersection solutions and emphasis on objective performance metrics for consistent comparisons, and (d) The opportunity to consolidate and streamline existing intersection-related policies and procedures, including access or encroachment approvals, new traffic signal requests, and impact studies for development. With the publication of the 7th Edition of the Green Book, AASHTO has begun a move towards performance-based design that emphasizes the location of the project in the transportation network and the surrounding environment and community, the type of service intended for all modes of travel, a flexible design approach that balances the needs of all users, and a performance-based approach for considering the effects of geometric design decisions. The proposed guide will align with this new direction. Many intersection improvement projects are initiated because of proposed land development. The developer is often not familiar with the options available and can bring political pressure on the agency for a particular design. A nationally recognized guide would promote a more productive dialogue with the developer. FHWA’s ICE Policy Webpage ( that includes a primer and evaluation tools. The objective of the proposed research is to develop an ICE guide that can be readily implemented by state and local transportation agencies. The guide should be applicable to projects initiated by the agency and those driven by land owners and developers. The proposed guide should take into account lessons learned from the 8-10 states that have already implemented ICE policies. The guide should provide the relative advantages of ICE policies that are more prescriptive (policies that are accompanied by step-by-step analysis tools) and ICE policies that are less prescriptive. The guide should describe a process that agencies can readily adopt into their manuals. In addition, model policy language should be included.


  • English


  • Status: Proposed
  • Funding: $400000
  • Contract Numbers:

    Project 17-98

  • Sponsor Organizations:

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001

    American Association of State Highway and Transportation Officials (AASHTO)

    444 North Capitol Street, NW
    Washington, DC  United States  20001

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Project Managers:

    Hanna, Amir

  • Start Date: 20200519
  • Expected Completion Date: 0
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01739573
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 17-98
  • Files: TRB, RiP
  • Created Date: May 18 2020 3:06PM