ACCOMMODATING LARGER TRUCKS AT AT-GRADE INTERSECTIONS

When a particular intersection serves a high volume of large truck traffic, design considerations should reflect the presence of those larger vehicles. This paper discusses three intersection design elements that are affected by large trucks: intersection sight distance, capacity, and channelization. For each element, guidelines and considerations for accommodating these larger vehicles at at-grade intersections are given. Changes and/or additions are recommended to both the 1984 AASHTO Design Policy and the 1985 Highway Capacity Manual.