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Understanding T Roundabouts: Design, Safety, and Navigation Guidelines

"A T roundabout, technically known as a three-arm or three-leg roundabout, is a circular intersection where three roads meet instead of the traditional four. These structures are designed to replace standard T-junctions to improve traffic flow, reduce the severity of vehicular collisions, and provide a more efficient transition for drivers turning between a terminating road and a continuous through-road. In 2026, the T roundabout has become a preferred engineering solution for suburban arterial roads and rural highway intersections. By forcing vehicles to slow down and move in a counter-clockwise direction (in right-hand traffic jurisdictions)..."

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