This data comes from the National Geographic Information Resources Catalogue Service System, which was provided free to the public by the National Basic Geographic Information Center in November 2017. We have spliced and cut the source of the three rivers as a whole, so as to facilitate the use of the study of the source area of the three rivers. The data trend is 2017.
The data set is 1:1 million traffic data in Sanjiangyuan area, including road (LRDL) and railway (LRRL) layers. Highway (LRDL) includes national, provincial, county, Township and other highways; Railway (LRRL) includes standard rail, narrow rail, subway and light rail.
Highway (LRDL) Attribute Item Name and Definition:
Attribute Item Description Fill in Example
GB National Standard Classification Code 420301
RN Road Number X828
NAME Road Name
RTEG Road Grade IV
TYPE Road Type Viaduct
Meaning of Highway (LRDL) Attribute Item:
Attribute Item Code Description
GB 420101 National Highway
420102 Building China Road
420201 Provincial Highway
420102 Provincial Highway in Architecture
420301 County Road
420302 Jianzhong County Road
420400 Rural Road
420800 Tractor ploughing Road
440100 Simple Highway
440200 Rural Road
440300 Trail
Name and definition of railway (LRRL) attribute item:
Attribute Item Description Fill in Example
GB National Standard Classification Code 410101
RN Railway No. 0907
NAME Railway Name Qinghai-Tibet Railway
TYPE Railway Type Elevated
National Catalogue Service for Geographic Information. Primary road network dataset at 1:1000 000 in the Sanjiangyuan region (2017). National Tibetan Plateau Data Center, 2018. (Download the reference： RIS | Bibtex )
Using this data, the data citation is required to be referenced and the related literatures are suggested to be cited.
Ecological Data Center of Sanjiangyuan National Park (No:SJYNP)
To respect the intellectual property rights, protect the rights of data authors,expand servglacials of the data center, and evaluate the application potential of data, data users should clearly indicate the source of the data and the author of the data in the research results generated by using the data (including published papers, articles, data products, and unpublished research reports, data products and other results). For re-posting (second or multiple releases) data, the author must also indicate the source of the original data.
Example of acknowledgement statement is included below: The data set is provided by National Tibetan Plateau Data Center (http://data.tpdc.ac.cn).
License：
This work is licensed under an
Attribution 4.0 International (CC BY 4.0)
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| East: 102.58 | West: 89.15 |
|---|---|
| South: 30.79 | North: 37.38 |
Distributor: National Tibetan Plateau Data Center
Email: data@itpcas.ac.cn
