New Unsignalized Intersection Improvement Guide Available!

The guide is on-line and can be accessed at http://www.ite.org/uiig/default.asp and an overall product summary is below.

This Unsignalized Intersection Improvement Guide (UIIG) has been developed to assist practitioners at such agencies in selecting design, operational, maintenance, enforcement, and other types of treatments to improve safety, mobility, and accessibility at unsignalized intersections. Originally produced under Project No. 03-104 of the National Cooperative Highway Research Program, the web-based UIIG is now hosted by the Institute of Transportation Engineers (ITE) under the sponsorship of the Federal Highway Administration (FHWA) Office of Safety.

The purpose of the UIIG is to assist and guide users through the process of evaluating their unsignalized intersections and identifying opportunities to enhance their safety and operational performance. The contents of the UIIG are presented under two sections—Information and Toolkit. The Information section provides important background material related to the types, users, common problems and treatments, and general considerations associated with unsignalized intersections.  The Toolkit provides a number of resources to assist the user in (1) collecting data on the existing conditions and characteristics of the intersection and (2) identifying potential treatments that may improve the safety and mobility at the intersection. These tools include a sample citizen input form, a Microsoft Excel-based unsignalized intersection assessment and inventory form, and an unsignalized intersection treatment selection tool.