Mini/modular Roundabout: Practicing Survey

Alexander Bachy*, Kakan Dey and Amdad Hossen, Benjamin M. Statler College of Engineering and Mineral Resources, West Virginia University, Morgantown, WV 26506

Field (Broad Category): Engineering (Physical Sciences & Engineering) 

Student’s Major: Civil Engineering 

In order to elevate congestion, increase safety and traffic flow, new traffic control alternatives must be considered when installing or renovating an intersection. There has been no previous study to comprehend practicing engineers understanding and professional judgments on implementation of mini/modular roundabouts as an alternate to stop controlled or signalized intersection. This study surveyed traffic engineers about their experience and perception about the implementation of mini/modular roundabouts in their jurisdictions. The agencies participated in the survey indicated that limiting the number of severe crashes was the most important consideration in installing a mini/modular roundabout. Agencies also intended to reduce crash frequency by installing a mini/modular roundabout, while also reducing congestion through an intersection. Overall, traffic engineers implemented this type of roundabout to increase the safety and operational improvement at an intersection. Practicing engineers’ response recommended that a mini/modular roundabout may be an appropriate alternative to a traditional stop-controlled intersection on highways with low speeds, low volumes and limited right of way. 

Funding: Ohio Department of Transportation 

Program/mechanism supporting research/creative efforts: WVU Work Study (not associated with RAP)