roadbed

plural roadbeds · alternative road bed

1. The prepared location for a road, including its foundation.
2. A trackbed.

   Holonym: right of way

   2 more examples

   It is obvious that mere training in mechanical skill, in technical knowledge of the locomotive, or even a thorough knowledge of the road bed from one end of the line to another, will not of themselves make a man a fit person to have charge of a locomotive.

   1880, William Miller Barr, Handbook for Steam Engineers and Owners: Being a Practical Guide to the Selection and Care of Steam Machinery, J.H. Kerrick & Company, page 119

   The roadbed, much of it fringing Swansea Bay, has been given free to the local authorities.

   1960 February, “Swansea & Mumbles closure”, in Trains Illustrated, page 95