基于地理标记照片的夜间游客时空行为及轨迹特征研究——以重庆中心城区为例

Spatial-temporal Behavior and Path Trajectory Characteristics of Tourists at Night Based on Geotagged Photos——A Case Study on the Central City of Chongqing

夜间旅游在深化供给侧结构性改革,构建以国内大循环为主体,国内国际双循环相互促进的新发展格局中发挥着重要作用。收集马蜂窝旅游网上2016—2020年的重庆中心城区地理标记照片,运用DBSCAN算法、时间统计分析和追踪分析探究重庆中心城区夜间游客的时空行为及轨迹特征。结果表明:①重庆中心城区夜间游客数量与国内外游客总量时间变化特征存在差异,气候条件和节假日是影响重庆中心城区夜间游客数量的重要因素。②重庆中心城区夜间游客规模逐年递增,游客量方面,春季>秋季>冬季>夏季,夜间旅游旺季为4月、5月、10月,热门时间段为18—20时,20时达到峰值。③重庆中心城区夜间旅游AOI形成“一核多点”的空间格局,倾向高级别景区(点)、城市商业街区、重要交通节点、山脊线、水岸线和重要文化空间。④重庆中心城区夜间游客行为轨迹以单节点轨迹为主,部分为区域内轨迹和区域间轨迹,单节点轨迹倾向知名度高的夜间旅游节点,区域内轨迹呈现核心边缘扩散特征,区域间路径轨迹以“A→B”式为主。

Night tourism played an important role in deepening supply-side structural reform and constructing a new development pattern in which domestic and foreign markets could boost each other.This paper collected geotagged photos of the central city of Chongqing from 2016 to 2020 on the website of Mafengwo,then used DBSCAN algorithm,temporal statistical analysis and tracking analysis method to explore the spatial-temporal behavior and path trajectory characteristics of tourists at night.The results showed that:①There were differences between the number of tourists at night and the total number of domestic and foreign tourists in the central city of Chongqing,climate conditions and holidays were the important influencing factors.②The number of tourists at night in the central city of Chongqing was increasing year by year,then the peak night tourism season occurred in April,May and October,with the popular time period from 18:00 to 20:00,peaked at 20:00.③The spatial pattern of night tourism AOI in the central city of Chongqing was“one core with multiple points”which tended to concentrate on high-level scenic spots,urban commercial blocks,important traffic nodes,ridgelines,waterfront,and important cultural space.④The path trajectory of tourists at night in the central city of Chongqing was dominated by single-node trajectory with partly intraregional path trajectory and interregional path trajectory.The single-node trajectory tended to be well-known tourist attractions,intra-regional path trajectory presented the characteristics of core edge diffusion,and the interregional path trajectory was mainly“A→B”.