Tunnels & Tunnelling International
The Global Voice of the Tunnelling Industry
For over 55 years, Tunnels & Tunnelling International (T&Ti) has been delivering trusted news, technical insight and in-depth project coverage to the global tunnelling and underground construction community.
Established in 1969, T&Ti has built a strong reputation for connecting industry professionals with the information, developments and innovations shaping the future of underground infrastructure. From major project announcements and planning through to procurement, construction and completion, our editorial coverage provides a comprehensive view of the tunnelling project lifecycle.
Our content explores the latest industry developments, technical advances and major projects across the underground construction sector, helping readers stay informed, identify emerging opportunities and understand the challenges and innovations influencing the industry.
T&Ti reaches an engaged audience of tunnelling and civil engineering professionals, including consultants, engineers, designers, contractors, project owners and specialist suppliers. Our coverage spans transport infrastructure, utilities, water conveyance, shafts, caverns and other areas of underground engineering.
By bringing together industry news, expert perspectives, technical knowledge and project intelligence, Tunnels & Tunnelling International remains a trusted source of information for the professionals and organisations shaping the future of tunnelling worldwide.
Official Publication of the British Tunnelling Society (BTS)
Supporting the Tunnelling Industry Through Knowledge and Collaboration
Tunnels & Tunnelling International (T&Ti) is proud to be the official publication of the British Tunnelling Society (BTS), a leading professional organisation supporting the development, knowledge and expertise of the tunnelling industry.
Through our relationship with the BTS, T&Ti benefits from the knowledge and experience of respected industry professionals who contribute to our international Editorial Advisory Board. Their expertise helps inform our editorial direction, ensuring our coverage remains relevant, insightful and aligned with the evolving needs of the tunnelling and underground construction sector.
BTS members are integrated into the T&Ti subscriber network, supporting the continued exchange of industry knowledge, news and technical insight. This relationship helps strengthen connections between professionals across the tunnelling community and provides a valuable platform for sharing developments, expertise and best practice.
Through our ongoing collaboration with the BTS and our commitment to high-quality editorial content, T&Ti continues to support the professionals, organisations and innovations shaping the future of tunnelling in the UK and around the world.
Circulation and Distribution
2027 Audience
Tunnels & Tunnelling International (T&Ti) connects a highly engaged professional audience with the latest news, technical insight and project developments shaping the global tunnelling and underground construction industry. Supported by a core of paid subscribers and an expanding multimedia presence, T&Ti delivers relevant content across print and digital channels, helping industry professionals stay informed and connected, wherever they operate.
Our audience spans the full spectrum of tunnelling decision-makers, including consultants, engineers, designers, contractors, project owners and specialist manufacturers and suppliers of tunnelling equipment, materials and technologies. This diverse professional community reflects the breadth of the underground construction sector and the organisations responsible for delivering major infrastructure projects worldwide.
By combining trusted editorial content with a targeted distribution network, T&Ti provides an effective platform for industry knowledge-sharing, professional engagement and commercial visibility across the global tunnelling community.
Geographical Breakdown

Weekly Newsletter
2 Digital newsletters sent each week, delivering the latest news, projects, and updates to over 20,000 digital subscribers. The newsletters also features a streamlined digital edition of the magazine, ensuring our most vital content is always at readers’ fingertips.
LinkedIn – Connecting the Global Tunnelling Community
With a combined LinkedIn audience of over 123,000 industry professionals, Tunnels & Tunnelling International (T&Ti) provides a powerful platform for sharing industry news, technical insight and project developments, while connecting businesses with the global tunnelling community.
Our Tunnels & Tunnelling LinkedIn group brings together more than 94,000 professionals, offering daily updates, industry polls and sector discussions.
The T&Ti company page, with over 29,000 followers, extends our digital reach through editorial content, industry news and project updates.
Together, our platforms support professional engagement, knowledge sharing and brand awareness across the international tunnelling sector.
Distribution in numbers
Core paid magazine subscribers: All hard copies are dispatched by name, now primarily to subscribers’ home addresses so every edition reaches readers whether working remotely or in-office.
- T&Ti Journal subscribers in print and digital format – 13,500
- Weekly Newsletter’s – 20,000
- LinkedIn audience base – 123,000+
Additional distribution,
Each year Tunnels & tunnelling International supports and partners with key events, which provides us an additional opportunity to reach key delegates, speakers, exhibitors at these key events throughout the year. Such events as





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Audience Overview
Our readers include the full spectrum of industry decision makers: consultants, engineers, designers, contractors, and manufacturers – specializing in equipment and materials. With our strong ties to the British Tunnelling Society (BTS), T&TI’s editorial is shaped and reviewed by an international committee of respected tunnelling experts
Editorial Calendar
T&TI offers the most comprehensive editorial coverage for the tunnelling and underground construction sector. This year will be running the following editorial focuses each month:
January
- Tech Focus : MECHANISED TUNNELLING
- Sector : Transport – Rail & Metro Tunnels
- Insight : Safety, Risk and O&M
February
- Tech Focus : DRILL & BLAST/ CONVENTIONAL
- Sector : Transport – Road Tunnels
- Insight : Circular, Sustainability
March
- Tech Focus : LININGS & WATERPROOFING
- Sector : Utilities/Trenchless Tunnelling
- Insight : Ground and Asset Investigations
April
- Tech Focus : SHAFTS & CAVERNS
- Sector : Power, Water & Storage
- Insight : Mucking out, Transport & Logistics
May
- Tech Focus : SOFT GROUND TUNNELLING
- Sector : Transport – Road Tunnels
- Insight : Education, Skills & Training
June
- Tech Focus : ROCK TUNNELLING
- Sector : Transport – Rail & Metro Tunnels
- Insight : Ground Stabilisation, Consolidation & Support
July
- Tech Focus : MECHANISED TUNNELLING
- Sector : Transport – Road Tunnels
- Insight : Project and Risk Management
August
- Tech Focus : DRILL & BLAST/ CONVENTIONAL
- Sector : Transport – Rail & Metro Tunnels
- Insight : Data, Digital, BIM
September
- Tech Focus : LININGS & WATERPROOFING
- Sector : Utilities/Trenchless Tunnelling
- Insight : Ground and Asset Investigations
October
- Tech Focus : SHAFTS & CAVERNS
- Sector : Power, Water & Storage
- Insight : Refurbishment, Renovation & Resilience
November
- Tech Focus : SOFT GROUND TUNNELLING
- Sector : Transport – Rail & Metro Tunnels
- Insight : Procurement & Contracts/ Finance & Insurance
December
- Tech Focus : ROCK TUNNELLING
- Sector : Transport – Road Tunnels
- Insight : Ground Stabilisation, Consolidation & Support






























