Roundabout Construction Begins in St. John’s, Cambridge, Philadelphia

Several major roundabout improvement projects have recently commenced or are scheduled to start in different locations to enhance traffic flow and safety. In St. John's, crews began work to convert the intersection near the airport into a roundabout, impacting traffic patterns and Metrobus routes. Cambridge's Addenbrooke's roundabout is undergoing a multi-phase redesign to widen paths and crossings for pedestrians and cyclists, initiated after a fatal accident; work is conducted overnight to minimize disruptions and maintain access to homes and the hospital. Meanwhile, Philadelphia's Pennsylvania Department of Transportation is constructing a $5.1 million roundabout at Castor Avenue and Wyoming Avenue, incorporating features like ADA-compliant sidewalks, bike ramps, and green stormwater systems to improve safety and environmental impact. Each project emphasizes minimizing disruption during construction and improving safety for all road users, including pedestrians, cyclists, and motorists. Authorities urge drivers to plan for delays and exercise caution around these evolving work zones.