permanent way
Fixed railway foundation
The permanent way is the finished track of a railway—the rails, sleepers, and ballast as a complete structure.
The term distinguishes the lasting infrastructure from temporary construction tracks.
British and technical usage: Engineers inspected the permanent way after the derailment.
The phrase dates from early railway building, when temporary tracks were replaced with permanent ones.
Ship stability material
- sleepersUnactivated spies or surprise hits
- tiesConnections or neckwear
- railsGuiding metal bars
- track bedRailway's structural foundation
fastenings · switches · turnouts · crossings · signaling · junctions · gauge · trackwork
Underlying support structure
- weldingHeat-fusing metal pieces
- jointsSkeletal connection points
- cantSanctimonious insincerity
- superelevationRoad surface banking angle
load-bearing · stress analysis · subsidence · stabilization · compaction · subgrade · formation · inspection
Sustained effort capacity
- longevityDuration of existence
- resilienceCapacity to recover quickly
- robustnessResistance to failure
- reliabilityConsistent, predictable performance
sturdiness · wear-resistant · corrosion-resistant · weatherproof · hard-wearing · lasting · heavy-duty · solid
ballast
Ship stability material
track bed · fastenings · switches · turnouts · crossings · signaling · junctions · gauge · trackwork · culverts
foundation
Underlying support structure
superelevation · load-bearing · stress analysis · subsidence · stabilization · compaction · subgrade · formation · inspection
endurance
Sustained effort capacity
- longevityDuration of existence
- resilienceCapacity to recover quickly
- robustnessResistance to failure
reliability · sturdiness · wear-resistant · corrosion-resistant · weatherproof · hard-wearing · lasting · heavy-duty · solid · maintenance
- railway infrastructurerailway station, train station, platform, tracks, rails
- railway tracksrails, steel rails, track bed, rail bed, railbed
permanent wayrolling stock
Wheeled railway equipment
locomotives · railway carriages · train cars · wagons · coaches
permanent, permanently, perm, impermanent, permanence, impermanence, perms, permanency, perming