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Old aerial photographs: past in focus

By: Language: English Series: New Civil Engineer ; (1106) 10 November 1994, 18-20(3)Publication details: 1994Subject(s): Summary: Discusses the advantages of using old aerial photographs in construction, as a cost-effective means of detecting potential hazards such as soft ground and swallow holes.

Discusses the advantages of using old aerial photographs in construction, as a cost-effective means of detecting potential hazards such as soft ground and swallow holes.