Class 1 Grade-Crossings
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资源简介：
The DVRPC Class I Grade Crossing data set is an extraction of the U.S. DOT National Highway-Rail Crossing Inventory with details related to the regional freight system. This data set includes only those grade crossings that exist on Class I mainlines in the Delaware Valley.
DVRPC一级平交道口数据集源自美国运输部（U.S. DOT）国家公路铁路平交道口清单，提取其中与区域货运系统相关的详细信息。本数据集仅收录特拉华谷地区一级干线铁路上的平交道口。
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DVRPC-GIS创建时间：
2026-05-31
