Definition: Positional accuracy
UN - Geographic Information Systems
A term used for the degree by which positions on a map or in a GIS database are recorded correctly with respect to their true location on the Earth’s surface. Logical accuracy, in contrast, only pertains to correct representation of the relationships among geographic features.
United Nations, "Handbook on Geospatial Infrastructure in Support of Census Activities", Department of Economic and Social Affairs, Statistics Division, Studies in Methods, Series F No. 103, New York, 2009