Components - Ramp meters

Since their implementation, ramp meters have served a wide variety of purposes. Ramp meters are traffic signals on freeway entrance ramps that break up clusters of vehicles entering the freeway to make merging safer.

Ramp meters can also store and spread out the volume of vehicles entering onto the freeway so it is less likely to become congested and the overall rate of travel is minimally affected.

Ramp meters are currently used in the greater Milwaukee area and on Dane County's Madison Beltline (US 12).