Considerations for “Super 3” Cross-Section in High-Volume Rural Corridors with Turning Traffic

The research report provides a set of guidelines for practitioners to consider items related to geometric design, access management, and traffic control devices in implementing passing lanes and turn lanes at intersections on rural two-lane highways.

Super Two, Super 2, Passing lane, Rural

The Performing Agency shall investigate the operational and safety benefits of turning treatments on two-lane and Super 2 corridors, as well as best practices for designing these treatments. In this project, the Performing Agency shall use existing conditions on two-lane and Super 2 corridors with and without turning treatments to develop computer simulation models for evaluating the effectiveness of such treatments on operations and safety. The Performing Agency shall use the evaluation results to update guidelines that the Receiving Agency can use to implement turning treatments on sections in or near passing lanes.

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