Smarter tunnels

摘要

One of the most complicated parts of a highway authority's portfolio of responsibilities, proper tunnel maintenance and design standards can be a matter of life and death. While new tunnels can be a matter of life and death. While new tunnels can be built to the highest standards, retrofitting old tunnels can actually be more of a challenge, especially given tight budgets. David Adams, associate director, tunnelling and underground structures at AECOM, digs into the expensive and complex issue of tunnel maintenance.