|
1
|
tunnel
|
United States
|
Tunnels are commonly used for transportation, such as road and rail tunnels, and are a feature of modern infrastructure projects.
|
1
|
|
2
|
tunnel
|
United States
|
Tunnels are common for road and rail transportation, especially in mountainous regions or urban areas.
|
1
|
|
3
|
tunnel
|
United States
|
Commonly used for transportation, often for roads and trains, and can extend for long distances.
|
1
|
|
4
|
tunnel construction
|
USA
|
Tunnel construction is often associated with major infrastructure upgrades and is used to overcome natural barriers such as mountains or bodies of water.
|
1
|
|
5
|
tunnel construction
|
United States
|
Emphasizes advanced tunnel boring technology and safety standards.
|
1
|
|
6
|
tunnels
|
United States
|
Tunnels are common for transportation, especially in urban areas, and are often associated with modern infrastructure projects.
|
1
|