以无锡市太湖广场为例,从时间距离与以行程时间乘以相应交通速度转换得到的间接空间距离两个角度分析了城市广场的休闲者空间行为特征。结果表明:时间距离上,休闲者的绝大部分都在30min以内,且呈不均匀分布;空间距离上,以1km为临界距离,该距离之内的休闲人数随距离出现波动,该距离之外的休闲者百分比随空间距离呈明显的衰减规律;距离衰减累计曲线比较结果表明不同类型城市休闲行业休闲者空间分布具有各自的衰减模式;另外,因交通方式的差别广场休闲者在空间距离上存在明显的圈层分异。
The spatial patterns and processes of the search for human recreation are critical to recreation geography. There are many researches on spatial behavior of recreationist and spatial structure of the generating areas at present. However, those are mostly about the spatial structure of medium or large scale generating market while few about small scale for the interurban daily leisure activities. So it is very important to understand the leisure behavior of urban residents and the overall arrangement of urban leisure spaces. This paper employs the indirect distance which is transformed by travel time and the velocity of its corresponding traffic mode, to examine the spatial behavior characteristics of urban plaza's users with case survey of Taihu Lake Plaza, Wuxi, Jiangsu Province of China. Based on the above, the paper reveals that percents of plaza users decrease with travel time and distance increasing. However, there are some differences between percent change with travel time and spatial distance. Time-distance mostly concentrates in 30mins, but spatial distance extends abroad. Also, the paper finds that they have different decay modes as in the whole but still with some similarities. Curves of physical health training and city park activities are close to the plaza leisure activities, especially for. the former. The number of consumers in Supermarkets has the slowest attenuation but that in bars has the fastest. In addition, the paper puts forward a spatial structure mode of obvious belts because of different travel modes. Considering time and traffic mode factors, the authors can more accurately measure the influence of distance on urban plaza activities. Above results and conclusion are of great significance to effectively estimate urban plazas' radius and plan urban public leisure space, and might be a great supplement about urban public leisure space research.