Although roundabouts are a good solution in many locations, they aren’t ideal for an intersection such as this with high traffic volumes and high turning movement volumes. A roundabout here could operate well until 2030 when increasing traffic volumes would create congestion and queues on the roadways leading into the roundabout. In addition, the multiple lanes needed for a proposed roundabout at this intersection could cause driver expectancy issues and crashes. The Improved Signalized Intersection provides a longer-term solution and has more flexibility for small modifications to address specific heavy turning movements.
Reviewed Mach 7, 2023.