WZ 42.12.0—Construction of railways and underground railways

Where 42.12.0 sits

1. F Construction
2. 42 Civil engineering
3. 42.1 Construction of roads and railways
4. 42.12 Construction of railways and underground railways
5. 42.12.0 Construction of railways and underground railways

What 42.12.0 includes

• Construction of railway lines, including those of railways other than railways
• Construction of overhead electric lines and conductor rails for railways

What 42.12.0 excludes

• Installation of lighting systems and electrical traffic signals, see 43.21.0
• Project management for construction projects, see group 71.1
• Engineering services, see 71.12

42.12.0 in other systems