摘要
基于便民自行车点的空间数据以及兰州市中心城区各类服务的POI点数据,运用DBSCAN空间聚类算法、空间形态指标以及缓冲区分析法对中心城区便民自行车点的时空分布格局、空间集聚特征以及缓冲区的服务范围面积进行研究。结果表明:1) 2014-2017年,兰州市中心城区自行车集群在空间上总体呈现出"东密西疏"的分布格局; 2)不同自行车集群等级的形态特征不同,自行车在集群内的密度趋于上升,但地域集中指数趋于下降; 3)兰州市中心城区便民自行车的可获取性表现出相似性和差异性,城关区和安宁区部分便民自行车的可获取性较好,七里河区内便民自行车的可获取性较差; 4)通过结合兰州市城市总体规划,进一步优化兰州市中心城区自行车空间布局。
Based on convenient bicycle points of spatial data and services of various types of Lanzhou POI data,the space of DBSCAN clustering algorithm,spatial morphology index and buffer analysis were used to research the spatial and temporal distribution of convenience bicycle spots,the space agglomeration feature and the service scope of the buffer.The results showed that:(1)in 2014-2017,The bicycle clusters in the downtown area of Lanzhou showed a spatial distribution pattern of "Eastern dense and Western sparse"overall.(2) Different bicycle cluster grades had different morphological characteristics.The density of bicycles in the cluster tended to rise,but the regional concentration index tended to decrease.(3) The convenience bicycle accessibility in different areas of downtown of Lanzhou showed similarities and differences.In Chengguan and Anning districts convenience bicycle havd better accessibility,in Qilihe district convenience bicycle had poor accessibility.(4) Through the integration of the overall urban planning of Lanzhou City,we will further optimize the layout of bicycles in the downtown area of Lanzhou.
作者
张旻
白永平
汪凡
王雪
车磊
ZHANG Min;BAI Yongping;WANG Fan;WANG Xue;CHE Lei(College of Geographic and Environmental Science,Northwest Normal University,Lanzhou 730070,China)
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2019年第1期178-183,共6页
Journal of Arid Land Resources and Environment
基金
国家自然科学基金(40771054)
高等学校博士学科点专项科研基金联合资助课题(20106203110002)资助
