| COMMENT EDITORIAL
EDITOR: Patrick Reynolds MEng, GMICE +44 (0)7890 122047
editor@tunnelsandtunnelling.com
FEATURE WRITER: Julian Champkin
julian.champkin@
tunnelsandtunnelling.com NEWS WRITER: Keren Falwell SUB-EDITORS: Katie Smith-Wong, Julian Turner DESIGNER/ART EDITOR: Martin Faulkner
ADVERTISING
CONVENTIONAL AND CARBON
Two of the key areas of interest in tunnelling design and construction are discussed in this issue – conventional tunnelling and carbon management, respectively. Each has a major feature and the subjects are approached through projects insight into transport projects. The features look at the
challenge of constructing a project in India featuring twin, large- span road tunnels in weak rock using NATM, and how carbon management is worked into the planning and design – including station depth choices – of the next line (M5) in Copenhagen’s expanding metro network. The issue also includes two
shorter features – a focus on ITA guidance on conventional tunnelling and an overview of the most recent (Q2 2026) data analysis of the tunnel-related project pipeline – with spotlights on Europe and the UK in context. Looking ahead, conference season
is coming up after summer. The calendar of events will be well under way by early October and planning needs to be done for
attendance. The BTS Conference takes place on 6–7 October in London; later that week tunnellers gather in Salzburg for the Austrian national conference; then, in mid-October, the French national conference takes place in Lille. Back in the UK, on 23 October the BTSYM holds its conference. There is much to discuss in UK
and international gatherings, and opportunities to visit construction sites to help engineers learn more about tunnelling techniques as well as the challenges faced and solutions found during projects. We are pleased to share a profile
interview with Mike McConnell, a long-time civil engineer and tunneller who worked on many remote international projects and has supported the BTS for decades. In an ambassadorial trek, Mike took the BTS 50th big book on its farthest journey from the UK – to New Zealand – where he had the opportunity to share its many stories with fellow tunnellers.
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MANAGING DIRECTOR: Victoria Rennie EDITORIAL ADVISORY BOARD
Roger Bridge (chair) BEng, ACSM, FIMMM John Corcoran (BTS Chair) CEng MICE FICE Asil Zaidi (BTSYM) Msc, PMP, GMICE Divik Bandopadhyaya BEng (Hons) MSc GMICE Kate Cooksey MEng, CEng, MICE Rosa Diez CEng, BSc (Hons), DIC, FGS, MIMMM Ken Kwok MSc, BSc, MHKIE, MIMMM Dr Donald Lamont MBE, PhD, CEng, FICE Darren Page BSc, MSc, CEng, CGeol, MIMMM, FGS David Terry BEng, CEng, FIMMM, FICE Ivor Thomas BEng, LLB, CEng, FICE
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Patrick Reynolds Editor
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August 2026 | 3
Tunnels & Tunnelling International and its Editorial Advisory Board accept no responsibility for the accuracy of statements, portrayal of best practice, or opinion given within the Magazine that is not the expressly designated opinion of the Magazine or its Editorial Advisory Board.
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