ballast roadbed

См. также в других словарях:

• roadbed — ☆ roadbed [rōd′bed΄ ] n. 1. a) the foundation laid to support the ties, rails, and ballast of a railroad b) a layer of crushed rock, cinders, etc. immediately under the ties 2. the foundation or surface of a road or highway …   English World dictionary

• roadbed — noun Date: circa 1840 1. a. the bed on which the ties, rails, and ballast of a railroad rest b. the ballast or the upper surface of the ballast on which the ties rest 2. a. the earth foundation of a road prepared for surfacing b. the part of the… …   New Collegiate Dictionary

• roadbed — The part of a railroad upon which the tracks are laid. San Francisco v Central P. R. Co. 63 Cal 467. The foundation, located on the right of way, on which the super structure of rails, ties, ballast, etc., rests. 44 Am J1st RR § 227. Not confined …   Ballentine's law dictionary

• roadbed — /rohd bed /, n. 1. Railroads. a. the bed or foundation structure for the track of a railroad. b. the layer of ballast immediately beneath the ties of a railroad track. 2. the material of which a road is composed. [1830 40. Amer.; ROAD + BED] * *… …   Universalium

• roadbed — (Roget s IV) n. Syn. crushed rock, gravel, ballast; see foundation 2 …   English dictionary for students

• roadbed — road•bed [[t]ˈroʊdˌbɛd[/t]] n. 1) rai a) the bed or foundation for the track of a railroad b) the layer of ballast immediately beneath the ties of a railroad track 2) trs the material of which a road is composed • Etymology: 1830–40 …   From formal English to slang

• roadbed — /ˈroʊdbɛd/ (say rohdbed) noun 1. the bed or foundation structure for the track of a railway. 2. a layer of ballast directly beneath the sleepers of a railway track. 3. the material of which a road is composed …  

• railroad — /rayl rohd /, n. 1. a permanent road laid with rails, commonly in one or more pairs of continuous lines forming a track or tracks, on which locomotives and cars are run for the transportation of passengers, freight, and mail. 2. an entire system… …   Universalium

• Glossary of rail terminology — Rail transport Operations Track Maintenance High speed Gauge Stations …   Wikipedia

• White Pass and Yukon Route — Infobox rail logo filename=White Pass.png railroad name=White Pass and Yukon Route logo size=150 old gauge= marks=WPY locale=Alaska, northern British Columbia, Yukon Territory start year=1898–1982, 1988 end year=present… …   Wikipedia

• Railroad car — A railroad car or railway carriage is a vehicle on a rail transport system (railroad or railway) that is used for the carrying of cargo or passengers. Cars can be coupled together into a train and hauled by one or more locomotive. Passenger cars… …   Wikipedia