In rural areas, tunnels for transport, irrigation, and other purposes can provide a cost-effective, low-maintenance, and safe alternative to surface routes in difficult terrain. They also have a smaller environmental footprint by reducing emissions and lessening impacts on biodiversity and cultural heritage. Well-designed and constructed tunnels are resilient and provide rural communities with an important asset for generations, if not longer.
- Key Points
- Tunnel Impact and Sustainability
- Tunneling Methodologies
- Tunneling Costs
- ADB Strategy 2030
- Examples of Low-Cost Rural Tunnels