Tunnel Market Report 2026

The tunnel market size has grown strongly in recent years. It will grow from $27.74 billion in 2025 to $29.52 billion in 2026 at a compound annual growth rate (CAGR) of 6.4%. The growth in the historic period can be attributed to growth in global infrastructure development, rising demand for urban transit systems, reliance on imported tunnel boring machinery, steady investments in public transportation projects, availability of steel and concrete materials.

The tunnel market size is expected to see strong growth in the next few years. It will grow to $38.6 billion in 2030 at a compound annual growth rate (CAGR) of 6.9%. The growth in the forecast period can be attributed to increasing adoption of automated tunneling technologies, rising focus on sustainable construction materials, expansion of high-speed rail networks, growing urbanization driving underground infrastructure, advancements in digital monitoring and structural analysis tools. Major trends in the forecast period include increasing use of tunnel boring machines and automated construction equipment, adoption of sustainable and low-carbon tunnel construction materials, growth in underground infrastructure for urban expansion, rising investment in high-speed rail and transit tunnel projects, expansion of large-scale government infrastructure programs.

The tunnel market's growth is expected to be driven by the escalation in road traffic. Road traffic involves the movement of vehicles and pedestrians along designated road networks. Tunnels serve to reroute traffic from town centers, minimizing landscape damage and optimizing underground space for transportation. For example, in June 2025, the Department of Transportation, a US-based government agency, reported that motor vehicle traffic on Great Britain’s roads increased by 1.6% between 2023 and 2024, reaching 336.2 billion vehicle miles. Hence, the surge in road traffic fuels the growth of the tunnel market.

Leading companies in the tunnel market are focusing on adopting innovative technologies, such as digital tunnel construction solutions, to enhance efficiency, safety, and cost-effectiveness in tunnel projects. Digital tunnel technologies incorporate advanced sensors, real-time monitoring systems, and automated control processes to optimize excavation and construction activities, offering greater precision and reduced operational risks compared with traditional manual or semi-automated methods. For example, in January 2023, Acciona S.A., a Spain-based construction and infrastructure company, introduced DigiTunnel, an advanced tunnel technology solution. The platform integrates digital twin models, automated machinery control, and predictive analytics to streamline tunnel design and construction workflows. It enables continuous monitoring of structural integrity, soil conditions, and equipment performance, supporting more accurate project planning and minimizing delays. Additionally, the system improves worker safety by reducing manual intervention in high-risk areas and enhances cost efficiency through optimized material usage and energy consumption.

In March 2023, Systra Group, a France-based company specializing in public transport and mobility solutions, acquired Bamser for an undisclosed amount. This acquisition enhances Systra's leadership in complex tunneling and underground infrastructure engineering, aligning with the increasing demand for innovative solutions in urban transit and energy projects. Bamser, an Australia-based firm, focuses on complex tunneling, trenchless methods, and infrastructure projects both in Australia and internationally.

Major companies operating in the tunnel market are China Railway Construction Corporation Limited, Bouygues Construction, Shanghai Construction Group Co., Ltd., Vinci Construction, Larsen & Toubro Limited, Bechtel Corporation, Strabag SE, Skanska AB, Obayashi Corporation, Kiewit Corporation, AECOM, Acciona, S.A., Taisei Corporation, Balfour Beatty plc, Webuild S.p.A. (formerly Salini Impregilo), Sacyr, S.A., PORR AG, Tutor Perini Corporation, Aecon Group Inc., Granite Construction Incorporated, Hatch Ltd., Systra Group, McConnell Dowell Corporation, Dragados USA Inc., 3TI Progetti S.p.A., Aktor S.A., ACS Group, Eiffage S.A.

Note that the outlook for this market is being affected by rapid changes in trade relations and tariffs globally. The report will be updated prior to delivery to reflect the latest status, including revised forecasts and quantified impact analysis. The report’s Recommendations and Conclusions sections will be updated to give strategies for entities dealing with the fast-moving international environment.

Tariffs are impacting the tunnel market by raising the cost of imported steel, composite materials, heavy machinery, and tunnel boring equipment, leading to higher construction expenses and delayed project timelines across highway, railway, and urban transit developments. Regions dependent on imported structural steel and advanced tunneling systemssuch as Europe, North America, and parts of Asiaface greater budget pressures. However, tariffs may promote domestic manufacturing of construction materials and machinery, stimulating local supply chain resilience and encouraging innovation in cost-efficient tunneling technologies.

The tunnel market research report is one of a series of new reports that provides tunnel market statistics, including tunnel industry global market size, regional shares, competitors with tunnel market share, detailed tunnel market segments, market trends, and opportunities, and any further data you may need to thrive in the tunnel industry. This tunnel market research report delivers a complete perspective of everything you need, with an in-depth analysis of the current and future scenario of the industry.

A tunnel is an enclosed structure constructed underground, typically with entry and exit points at each end, used for rail, vehicular, or pedestrian traffic. Tunnels commonly serve as essential links on highways and railroads, providing rapid transit systems.

There are primarily two main types of tunnels such as railway tunnels and highway or roadway tunnels. Railway tunnels accommodate railway tracks and are constructed to shorten travel distances by allowing train lines to pass through geographical barriers such as mountains. These tunnels commonly utilize materials such as steel, concrete, and composite materials and find applications in commercial and government construction projects.North America was the largest region in the tunnel market in 2025. Europe is expected to be the fastest-growing region in the global tunnel market report during the forecast period. The regions covered in the tunnel market report are Asia-Pacific, Western Europe, Eastern Europe, North America, South America, Middle East, Africa. The countries covered in the tunnel market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Russia, South Korea, UK, USA, Canada, Italy, Spain.

The tunnel market includes revenues earned by entities by providing tunnel design, structural analysis, precast concrete design, geotechnical design, procurement, and project management services. The market value includes the value of related goods sold by the service provider or included within the service offering. Only goods and services traded between entities or sold to end consumers are included.

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD unless otherwise specified).

The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

This product will be delivered within 1-3 business days.