A running survey is a rough survey made by a vessel while coasting. Bearings to landmarks are taken at intervals as the vessel sails offshore, and are used to fix features on the coast and further inland. Intervening coastal detail is sketched in.
In land surveying, the term can refer to establishment of a boundary by a combination of distance measurement, using Gunter's chain or similar, and direction, using a magnetic compass or astronomic means. The results obtained by such methods are irreproducible and open to legal challenge.
References
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Ministry of Defence (1987), Admiralty manual of navigation. Volume 1. General navigation, Coastal Navigation and Pilotage, HMSO, p.527, ISBN0-11-772880-2
↑Ritchie, G. S. (April 1970), "Developments in British Hydrography Since the Days of Captain Cook", Royal Society for the Encouragement of Arts, Manufactures and Commerce, Journal, 118 (5165): 270–283
↑Flinders, Matthew (1814). A Voyage to Terra Australis: Undertaken for the Purpose of Completing the Discovery of that Vast Country, and Prosecuted in the Years 1801, 1802, and 1803, in His Majesty's Ship the Investigator. London: G. Nicol & Son. LCCN04032254. OCLC1931791. WikidataQ133873351.