4212 Construction of railways and underground railways
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4212 Construction of railways and underground railways
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- 42.12.1 Railways and underground railways
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42.12.10 Railways and underground railways
This subcategory includes:
- railway roadbeds for long-line and commuter rails, street tramways, and underground or elevated urban rapid transit systems
- railway electrification structures
This subcategory excludes:
- tunnels for underground rail traffic, see 42.13.10
- 42.12.2 Construction works for railways and underground railways
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42.12.20 Construction works for railways and underground railways
This subcategory includes:
- construction works for railways, including underground railways:
- laying works of ballast and rails
- installation works of switch gear, points and crossings
- construction works of control and safety systems for railway tracks
- construction works for funicular railways and cable car systems
- renovation or repair works for railway track
This subcategory excludes:
- construction works for tunnels for underground railways, see 42.13.20
- construction works for railways, including underground railways: