| With the dropping of urban public health standards, more and more people promote health through outdoor slow transport-related physical activities. Due to the acceleration of urbanization, the urban built environment is deteriorating rapidly, extremely not conducive to outdoor slow transport-related physical activities. Thus, the correlation of built environment and physical activity becomes the focus of urban construction. As one of the main component elements of the built environment, road network can also be seen as a top priority. Based on the existing theoretical research and movement information samples which are collected from motion tracking software and analyzed by Arc GIS and SPSS,this article aims to exploring the impact of road network on outdoor slow transport-related physical activities, such as jog, walk and cycle.This paper adopts the combination of empirical research and qualitative quantitative research methods. Based on the summary of relevant research at home and abroad, and analysis the present situation of Shenzhen road network and the current activities, this paper formulates the main road network factors and proposes general and specific two aspects to study the influence of road network on ou tdoor slow physical activities. With the independent variables of road line density, surface density and link-node ratio,the dependent variables of activity density and diversity of activities,the control variables of land use mixture, ratio of residential land, green land ratio and bus stations density, the overall level research use the streets as research units to do correlation and regression analysis. The results show that the road network influence the distribution of outdoor slow transport-related physical activities through road line density, and further discuss the root cause s of the influence of road network on outdoor slow physical activities. From the specific aspect,this paper uses the path buffers as research units and compares the activity features,features of activity distribution and road network characteristics of different activities. According to the results of comparative analysis, the paper summarizes the preferences for road network features and slow transport system model of different activities, proposes comments and suggestions that can promote physical activities, such as building walking friendly community, avenue network and cycling friendly corridor.Exploring the correlation of road networks and outdoor slow transport-related physical activities provides theoretical support for constructing active intervention healthy living environment. It has theoretical and practical signifi cance for many areas,such as the urban planning, public health, traffic engineering. |
