Article ID: | iaor19993013 |
Country: | United Kingdom |
Volume: | 33A |
Issue: | 3/4 |
Start Page Number: | 217 |
End Page Number: | 236 |
Publication Date: | Apr 1999 |
Journal: | Transportation Research. Part A, Policy and Practice |
Authors: | Brilon Werner, Wu Ning, Troutbeck Rod J., Tian Zongzhong, Vandehey Mark, Robinson Bruce W., Kittelson Wayne, Kyte Michael |
The computational procedures used to analyze two-way stop-controlled intersections were extended in the National Cooperative Highway Research Project 3-46 to account for a number of effects commonly observed at actual unsignalized intersections. This paper presents theoretical extensions that can account for commonly observed phenomena, such as two-stage gap acceptance when median storage is available; right-turn ‘sneakers’ at flared minor-street approaches; non-random arrivals caused by upstream signals; impedance due to pedestrian crossings; and delay to major-street through vehicles using shared left-turn and through lanes. The individual effects are then combined into an analytical framework suitable for inclusion in the Unsignalized Intersections procedures of the 1997 ‘Highway Capacity Manual’.