本文档指定了相对于一维对象的位置的概念模式，作为沿该对象的测量（也可以选择从该对象偏移）。它定义了使用和支持线性引用所需的数据和操作的描述。本文件适用于交通、公用事业、环境保护、基于位置的服务和其他定义相对于线性对象位置的应用。为了便于阅读，本文中讨论的大多数示例都来自交通领域。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document specifies a conceptual schema for locations relative to a one-dimensional object as measurement along (and optionally offset from) that object. It defines a description of the data and operations required to use and support linear referencing.This document is applicable to transportation, utilities, environmental protection, location-based services and other applications which define locations relative to linear objects. For ease of reading, most examples discussed in this document come from the transportation domain.All current amendments available at time of purchase are included with the purchase of this document.