Why build a roundabout rather than a traditional intersection with a traffic signal at the Manette end of the bridge?
The roundabout will safely and efficiently move motor vehicle, bicycle and pedestrian traffic through the intersection. As traffic volumes will increase at this intersection, eventually a traffic signal would be needed if rebuilt in the existing configuration. A single-lane roundabout is well-suited to current and expected future traffic volumes. The center portion of the roundabout provides a space for welcoming bridge users to the Manette neighborhood.