Improve safety, reduce accidents, and add capacity were AEI’s primary goals for the Shiloh Road at Shiloh Crossing intersection project. During concept development, AEI deliberated two options to meet the project objectives and to be within the overall Special Purpose Local Option Sales Tax (SPLOST) project budget, including: (1) a roundabout, and (2) a traffic signal with dedicated turn lanes. The roundabout was chosen over the conventional signalized intersection since a traffic signal did not meet warrants. The project was funded from 100% local SPLOST funds and converted a 3-way stop controlled intersection with an offset church driveway into a combined single-lane, 4-legged urban roundabout.
AEI’s roundabout design included an inscribed 127-ft. circle diameter; four mountable, raised splitter islands; a mountable truck approach with Type 9 curb facing to accommodate WB-67s; a landscaped central island; and lighting. AEI focused its effort on the design of the approaches to constrain the entry and slow vehicles while opening the exit for efficient egress. Sidewalks were added along the roundabout and westside of Shiloh Road to accommodate pedestrians and lighting was added. The roundabout was opened to traffic in January 2020 and all punch list items were completed by the contractor in April 2020.
Forsyth County got more ”bang for their buck” with this intersection improvement project with regard to improved safety, increased capacity, and improved aesthetics within a heavily traveled industrial park. This $1.3 million project had five parcels, zero displacements, no roadway closures during construction, was completed within budget, had a fast-track design schedule, and resulted in a high level of client satisfaction.