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Center for Transportation Studies

Programs & Labs

Ramp Metering

Ramp metering is used to improve the flow of traffic on urban freeway systems by controlling the rate at which vehicles enter the roadway. These studies focus on evaluating and optimizing the control algorithms of ramp meters, using simulation and modeling techniques.

Photo of a traffic metering signal.

Controlling the rate at which vehicles enter the freeway system is a central element of traffic management in the Twin Cities