{"id":"f5669104-4cbf-4f38-b33d-8008f9de7c5f","title":"三江源1:25万交通数据集（2015）","title_en":"Primary road network dataset at 1:250,000 of the Three Rivers Source Region (2015)","serial":"","user_limit":"为尊重知识产权、保障数据作者的权益、扩展数据中心的服务、评估数据的应用潜力，请数据使用者在使用数据所产生的研究成果中（包括公开发表的论文、论著、数据产品和未公开发表的研究报告、数据产品等成果），明确注明数据来源和数据作者。对于转载（二次或多次发布）的数据，作者还须注明原始数据来源。","instructions":"","description":"本数据来源于全国地理信息资源目录服务系统，由国家基础地理信息中心于2017年11月份开始免费向公众提供。我们将三江源作为一个整体进行了拼接和裁切，以便于三江源地区研究中的使用。数据现势性为2015年。\n本数据集为三江源地区1:25万交通数据，包括公路（LRDL）和铁路(LRRL)两个图层。公路（LRDL）包括国道、省道、县道、乡道和其它公路等；铁路(LRRL)包括标准轨铁路、窄轨铁路、地铁和轻轨等。\n       公路（LRDL）属性项名称及定义：\n属性项\t描述\t填写实例\nGB\t国标分类码\t420301\nRN\t道路编号\tX828\nNAME\t道路名称\t着晓三叉口-尕拉山顶叉口\nRTEG\t道路等级\t四级\nTYPE\t道路类型\t高架\n        公路属性项含义：\n属性项\t代码\t描述\nGB\t420101\t国道\n\t420102\t建筑中国道\n\t420201\t省道\n\t420102\t建筑中省道\n\t420301\t县道\n\t420302\t建筑中县道\n\t420400\t乡道\n\t420800\t机耕路\n\t440100\t简易公路\n\t440200\t乡村路\n\t440300\t小路\n        铁路（LRRL）属性项名称及定义：\n属性项\t描述\t填写实例\nGB\t国标分类码\t410101\nRN\t铁路编号\t0907\nNAME\t铁路名称\t青藏铁路\nTYPE\t铁路类型\t高架","doi":"","projection":"","language":"zh","share_type":"online","east":102.58,"west":89.15,"south":30.79,"north":37.38,"scale":null,"crs":"","filesize":21.0,"share_policy":"a","ts_created":"2018-11-27T12:53:06.014283+08:00","doi_type":"","ts_updated":"2021-04-19T10:42:40.452347+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":null,"project":[10,11,12],"specials":["d09c103c-0e37-4b09-a609-6d77c982ae37","f2a78cde-1c98-4241-94dc-7532eba32b80"],"cite":"","review_status":5,"review_invite":[],"review_editor":{"id":21057,"last_login":"2022-04-02T11:43:37.753860+08:00","username":"gecm","email":"gechm@lzb.ac.cn","is_active":true,"is_staff":true,"user_name":"盖春梅"},"data_sources":"","temporal_resolution":"","spatial_resolution":"","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[],"subtopics":{"metadata":"f5669104-4cbf-4f38-b33d-8008f9de7c5f","three_pole":null,"third_pole":null},"username":"胡晓利","review_time":null,"protected_duration":6,"protected_describe":null,"is_important":false,"hit_count":5265}