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出典:『Wikipedia』 (2011/05/03 19:35 UTC 版)

英語による解説

引用

Linear referencing (also called linear reference system or linear referencing system or LRS), is a reference system in which the locations of features are identified by a relative measure along a linear element, for example a milestone along a road. Each feature is located by either a point (known as a "milepoint") or a line ("segment"). The system is designed so that if a segment of a route is changed only those milepoints on the changed segment need to be updated.