95 Express Managed Lanes

To improve congestion on I-95, the 95 Express project in South Florida set out to convert existing high-occupancy vehicle (HOV) lanes to high-occupancy toll (HOT) lanes, or managed lanes. Due to design, operational, and safety issues that can arise when adding managed lanes to an existing highway system, the Florida Department of Transportation partnered with RS&H to to conduct a study that would ensure the express lanes would not disrupt the integrity or safe operations of the corridor. 

Using traffic modeling software, RS&H analyzed traffic operations for the intermediate northbound and southbound HOT lanes access and terminal points. The team successfully integrated the design and operational analysis phases of the project in a feedback loop to ensure that the addition of HOT lanes to the inside of I-95 would not compromise operations or safety. The models provided a complete picture of the proposed operations, which justified the need for the managed lanes project, as well as led to several recommendations for design improvements.  The study ultimately accelerated approval and implementation of the project.
Since opening in 2009, the new express lanes have improved mobility and overall quality of life for drivers along one of the nation’s most heavily traveled corridors.

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Project Information

Miami-Dade and Broward Counties, Florida

Florida Department of Transportation, Districts 4 and 6

Notable Awaeds:
People’s Choice Award in the America’s Transportation Awards
American Association of Highway and Transportation Officials (AASHTO), 2009

Innovative Management Award in the Regional America’s Transportation Awards
Southeast Association of State Highway and Transportation Officials (SASHTO), 2009

National Finalist
American Council of Engineering Companies (ACEC) Engineering Excellence Awards, 2009

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