Alaska Fairbanks Truck Trial Highlights - Field Testing Roundabout Design

The State of Alaska Department of Transportation and Public Facilities (DOT&PF) completed a Highway Safety Improvement Program (HSIP) project at the Danby Street and Wembley Avenue intersection (Danby-Wembley) in Fairbanks, Alaska. The Alaska DOT&PF has adopted a “Roundabout First” policy and give this project resounding praise to the tune of featuring RTE’s projects in their roundaobut informational video. The objective of this project was to upgrade the existing two-way stop controlled intersection with a modern roundabout in an effort to improve safety for all corridor and intersection users – especially for extreme OSOW truck traffic. During extensive truck trials in the field, large trucks with different configurations tested the roundabout design to make sure they can easily pass through RTE’s design layout. Mr. Ritchie creatively developed unique design treatments to allow a few excessibly long special permit OSOW trucks to traverse the roundabout backwards and through islands in order to maintain safety for all other road users.