TY - CONF T1 - Mapping the underworld: A step-change in the approach to utility location and designation JO - ICPTT 2011: Sustainable Solutions for Water, Sewer, Gas, and Oil Pipelines - Proceedings of the International Conference on Pipelines and Trenchless Technology 2011 PY - 2011/01/01 AU - Royal ACD AU - Rogers CDF AU - Atkins PR AU - Chapman DN AU - Chen H AU - Cohn AG AU - Foo KY AU - Goddard K AU - Hayes R AU - Hao T AU - Lewin PL et al ED - DO - DOI: 10.1061/41202(423)168 SN - 9780784412022 SP - 1589 EP - 1597 Y2 - 2025/05/19 ER -