The area that divides traffic moving in opposite directions on a single roadway.
a barrier - a raised or lowered, paved or unpaved strip dividing traffic travelling in both directions
The portion of a divided highway separating traffic traveling in opposite directions.
The area between roadways that carry traffic in opposite directions. On bridges, medians may be just wide enough for a barrier curb.
a median is a barrier, constructed of concrete, asphalt, or landscaping, that separates two directions of traffic.