Lighting and linings

摘要

The technical challenges facing civil engineers when constructing a new tunnel are well documented, but there are often many problems to overcome for those installing the finishes and lighting too, as David Taylor reports. Tunnelling is by necessity a more demanding activity -from the technical viewpoint at least - than most other aspects of civil engineering. Few jobs are so confined, so fraught with risk, both financial and to health and safety, and so unpredictable for the designers and contractors.