Low-Cost Tunnels for Rural Roads in Asia and the Pacific
Publication | February 2021
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This publication provides an overview of low-cost rural tunnels in the context of developing countries in Asia and the Pacific. It explains benefits, methodologies, and costs, and how they contribute to the ADB Strategy 2030.
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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.
Contents
- Key Points
- Introduction
- Tunnel Impact and Sustainability
- Tunneling Methodologies
- Tunneling Costs
- ADB Strategy 2030
- Examples of Low-Cost Rural Tunnels
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