Urban Tourist Path Trajectory Spatial Characteristics——An Empirical Analysis of Geotagged Photos
基于Panoramio平台的地理标记照片，分析南京城市游客路径轨迹的空间特征，发现核心-边缘结构、单节点路径占主导，并识别出11种路径轨迹模型。
Geographic information systems, communications technology and network technology development provided technical support for collecting visitors tracking data. This paper explores urban tourist path trajectory spatial characteristics in Nnajing city based on geotagged photos, using Panoramio interactive media platform and social networking mining technology with hotspot analysis and tracking analyst techniques. Study found that:(1) Visitors geotagged photos in Nanjing city shows spatial characteristics on the geographic concentration andbig scattered, small gathering. Suburbs in Nanjing are weaker than the core area. These furtherly demonstrate the core-periphery characteristics.(2)By using Getis-Ord Gi *analysis, core hotspot areas are identified. Core hotspot areas have tended to concentrate on the tourist attractions, the central business district, important cultural facilities and transportation facilities.(3)Using tracking analysis, the paper reveals single node trajectory, intraregional path trajectory and interregional path trajectory. 62.69% visitors chose single-node trajectory, 13% visitors chose intraregional path trajectory and 24.31% tourists chose interregional path trajectory.(4)110 different path trajectory model are identified, and there are 11 types model on tourist path trajectory in Nanjing. Thecore-core(47.78%) andcore-second core(43.82%) are dominate, forming a strong central linear structure.