长江经济带1：100万国道数据集（2015年）

该数据集为长江经济带1:100万国道数据集，为公路交通数据。该数据集在全国1:100万77幅基础地理数据（2017版公众版）基础上，对数据进行拼接、属性合并等处理，提取公路交通数据，参考《基础地理信息要素分类和代码》，提取相应国道信息，得到全国100万国道数据集，在此数据基础上提取长江经济带范围内的国道数据。包含了国道的名称、国道等级、国道代码等指标信息。
数据集包含了1个shp矢量数据，cj公路国道.shp。

This dataset is the 1:1,000,000 national highway dataset for the Yangtze River Economic Belt, which belongs to highway traffic data. Based on the national 1:1,000,000 basic geographic data (2017 public version) consisting of 77 tiles, this dataset was processed with operations including data mosaicking and attribute merging. Highway traffic data was extracted, and corresponding national highway information was extracted by referring to the "Classification and Codes for Basic Geographic Information Elements", thereby obtaining the national 1:1,000,000 national highway dataset. Subsequently, national highway data within the scope of the Yangtze River Economic Belt was extracted based on this national dataset. This dataset includes indicator information such as the name, grade, and code of national highways. The dataset contains one shapefile vector dataset: cj公路国道.shp.