“一带一路”关键节点区域-道路数据（2015）

“一带一路”沿线的34个关键节点区域内的道路数据是从互联网收集并再加工处理而来，为矢量shp格式，可用于一带一路关键节点区域的路网统计和可达性分析。首先以关键节点区域所在国家收集整理道路数据，按关键节点区域进行裁剪提取，同时与基于高分辨率遥感影像道路提取结果进行对比分析，结合各个地区统计局数据核对更新，最终整合成道路基础设施要素数据产品。道路数据集为矢量线状数据，空间坐标系为WGS84，包含名称(name)、道路类型(fclass)、是否为桥梁(brige)、是否为隧道(tunnel)、是否为单行道(oneway)以及最大限速(maxspeed)等属性字段，可用来计算道路长度、分析道路分布情况等。该道路数据可为“一带一路”沿线关键节点和区域开展社会经济基础设施、交通运输等研究提供重要的基础数据。

The road data within 34 key node regions along the Belt and Road Initiative (BRI) was collected from the Internet and further processed. It is available in vector shp format and can be utilized for road network statistics and accessibility analysis of the key node regions along the BRI.

First, road data was collected and organized based on the countries hosting the key node regions, then clipped and extracted according to the extents of these key node regions. Comparative analysis was conducted against road extraction results derived from high-resolution remote sensing images, and updates were verified and implemented in combination with statistical data from regional statistical bureaus. Finally, the dataset was integrated into a road infrastructure feature data product.

This road dataset consists of vector linear data with the WGS84 spatial coordinate system, and includes attribute fields such as name, road type (fclass), whether it is a bridge (brige), whether it is a tunnel (tunnel), whether it is a one-way road (oneway), and maximum speed limit (maxspeed), among others. It can be used to calculate road length, analyze road distribution, and conduct other relevant research analyses.

This road dataset can provide important foundational data for studies on socio-economic infrastructure, transportation and other fields conducted in key nodes and regions along the Belt and Road Initiative.