right of way

noun

1. 1.The right to proceed first in traffic, on land, on water or in the air. Also in metaphorical senses.
2. 2.A legal right of passage over another's land or pathways.
3. 3.A legal easement granted for the construction of a roadway or railway.
4. 4.Land on which a right of way exists.
5. 5.The area modified for passage of a railway; often specifically the railbed and tracks.