The Autopista Radial R-4 is a Spanish radial motorway originating from Madrid and passing through Valdemoro, connecting to the N-400, Autovía A-40 and Autopista AP-36.
The road is managed by the Cintra.
Coordinates: 40°04′40″N 3°40′26″W / 40.0777°N 3.6739°W