railbed
Gravel under tracks
The railbed is the foundation on which railroad tracks are laid—the prepared surface of gravel, crushed stone, and compacted earth that supports the ties and rails.
The term also refers to abandoned railroad corridors, often converted to trails: The old railbed makes a great hiking path.
Also called roadbed.
Ship stability material
- subgradeSoil layer supporting pavement
- gradingAssigning marks to work
- excavationAct of unearthing
- embankmentRaised earth structure
aggregate · compaction · drainage · tamping · earthworks · fill · geotextile · culvert
Soil layer supporting pavement
- compactionReducing volume through pressure
- permeabilityAbility to transmit fluids
- consolidationCombining into unified whole
- settlingReaching resolution or rest
drainage · erosion · groundwater · vibration · sedimentation · subsidence · bedrock
Ship stability material
- gravelLoose small rock fragments
- aggregateCombined sum total
- cinderCombustion residue fragment
- slagIndustrial metalworking byproduct
geotextile · concrete · stone · sand · clay · riprap · timber · asphalt
Conserved trail corridor
- cyclingRiding on two wheels
- recreationRefreshment through leisure
- heritageInherited cultural legacy
- corridorEnclosed connecting walkway
repurposing · abandoned · hiking · paving · scenic · easement · preservation
ballast
Ship stability material
- subgradeSoil layer supporting pavement
- gradingAssigning marks to work
- excavationAct of unearthing
embankment · aggregate · compaction · drainage · tamping · earthworks · fill · geotextile · culvert · right-of-way
subgrade
Soil layer supporting pavement
- compactionReducing volume through pressure
- permeabilityAbility to transmit fluids
- consolidationCombining into unified whole
settling · drainage · erosion · groundwater · vibration · sedimentation · subsidence · bedrock
ballast
Ship stability material
slag · geotextile · concrete · stone · sand · clay · riprap · timber · asphalt
greenway
Conserved trail corridor
- cyclingRiding on two wheels
- recreationRefreshment through leisure
- heritageInherited cultural legacy
corridor · repurposing · abandoned · hiking · paving · scenic · easement · preservation
- railway infrastructuretrain station, platform, tracks, rails, depot
- railway tracksrails, steel rails, trackbed, ballast, crushed stone
- roadbedroadbed, trackbed, subgrade, subbase, base course
- railwaystrains, train, locomotives, locomotive, tracks