Project Description

I-277/I-77 Loop Strategy Study

RS&H completed a study to evaluate future capacity, operational, and safety conditions of the 6.5-mile I-277/I-77 Loop around uptown Charlotte, North Carolina. The results will be used to define projects within the 2040 Mecklenburg-Union Metropolitan Planning Organization Long-Range Transportation Plan.

This multipronged study included a technical traffic and safety analysis to address safety and congestion issues, as well as a focus on community planning and design to ensure compatibility and connectivity with the city’s vision of a multimodal “Center City.” We used microsimulation to analyze each system and service interchange, as well as ramp terminal and adjacent significant intersections.

Using our award-winning, four-tier funnel planning method, RS&H evaluated all possible interchange concepts for each interchange and identified a preferred concept. We also evaluated various innovative interchange types, including turbine, diverging diamond, and high five (five-level) interchanges, as well as two and three-level roundabouts.

Our team conducted client and public meetings and used various visualization tools to effectively communicate the complex ideas to project stakeholders.

Project Details

Description Transportation
Transportation Corridor Planning
Environmental Planning
Location Charlotte, NC
Client/Owner City of Charlotte


James W. Hullett