Railroad Centerline

This file represents the digital railroad centerline segment layer. Location data for railroad centerlines are received by NDS staff (from various sources, such as updated orthos, GPS, plats, etc.) and incorporated into this layer. The information contained in this file is NOT to be construed or used as a "legal description." Any errors or omissions should be reported to NDS for correction.本文件对应数字铁路中心线线段图层。铁路中心线的位置数据由NDS工作人员从各类来源（如更新后的正射影像、GPS数据、地籍图等）获取，并整合至本图层中。本文件所载信息不得被解释或用作"法律描述"。若发现任何错误或疏漏，请向NDS反馈以进行修正。