An extended reserved area at, or close to, the centre of the carriageway which provides a place for pedestrians to wait before crossing the next part of the road.
An island in the center of the roadway that provides pedestrian refuge and reduces the distance between safety points. A median may also be used as an area for light rail or bus rapid transit stations.
An island in the center of a street or intersection to protect pedestrians and provide landscaping. Medians prevent passing, and left turns, separate opposing travel lanes and provide visual enhancement.