Traffic Operations at Two-Way Stop-Controlled Intersections. Volume 2. AnEmpirical Method to Estimate Capacity and Delay on Minor Street Approach

摘要

The 1985 Highway Capacity Manual (HCM) includes procedures for analyzing trafficoperations and performance at stop-controlled intersections. However, several significant problems exist with these procedures. Solutions to these problems include defining a new procedure for evaluating two-way stop-controlled intersections based on adequate field data from the U.S., defining a formal procedure for evaluating all-way stop-controlled intersections, and defining a measure of effectiveness such as delay, that is common to all types of intersections. In an effort to move toward these solutions the Idaho Transportation Department and the University of Idaho jointly initiated a series of research projects related to stop-controlled intersections. The problem to be addressed in the project is the development of procedures to evaluate level of service and capacity of two-way stop-controlled intersections through empirical and simulation models. The purpose of the report is to explore the current HCM procedure and to suggest new methods for the analysis of one set of traffic movements, the minor street approaches. The report covers five topics: (1) the data base, (2) the HCM method, (3) the UK empirical method, (4) development of empirical capacity and delay models, and (5) a recommended method.