track ballast
Sign in to saveAlso known as gun platform, ballast
trackbed upon which railroad ties are laid
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- Ballast
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railway track
Entity
railroad tie
Entity
signalling control
Entity
rubber-tyred metro
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International Standard Book Number
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soil
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sand
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kilometre
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clay
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railway station
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mile
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infrastructure
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gravel
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cubic metre
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OCLC, Inc.
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vegetation
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track gauge
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rail
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level crossing
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railway platform
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