| In recent years,with the development of the national fitness movement,the state and government have attached increasing importance to the construction of outdoor sports venues.Although certain progress has been made in the construction of outdoor sports venues in China,people are still restricted by the location of the venues,the number of facilities and the level of service when they engage in sports activities,while urban residents are increasingly pursuing quality of life,and the existing outdoor sports venues and facilities are gradually unable to meet people’s sports needs.The construction of outdoor sports venues contributes to the functional improvement of urban open spaces and to the physical development of adolescents.This study takes outdoor sports venues as the research object and conducts a virtual environmental behavioural survey on adolescents through stated preference method to investigate the demand preference mechanism of adolescents for outdoor sports venues,and uses this as a basis to suggest optimisation of the layout and design of outdoor sports venues.This paper firstly composes and summarises the current situation and achievements of research on outdoor sports venues at home and abroad.By comparing research methods of spatial behavioural demand analysis,the feasibility and advantages of stated preference as the research method of this paper are determined,and the main points of research on the spatial optimisation of outdoor sports venues by youth demand preferences are grasped.Preresearch was then used to establish the influencing factors for this study.Stated preference method was used to design a preference choice questionnaire and collect data.A discrete choice model was developed to analyse the questionnaire results,and the results of the model were used to determine the relative preference of youths for each element when choosing an outdoor sports venue,categorising the demand preference mechanism into three areas:accessibility,surrounding environment and service level.Finally,the Shishan street area in the Huqiu District of Suzhou was selected as the study area,and the outdoor sports venues within the area were evaluated by substituting them into a discrete selection model.Based on the results of the analysis of the influencing factors,suitable optimisation strategies were formulated and selected by adjusting the supporting conditions such as the quality of the venue,the type and quantity of facilities,and safety;and the selection of outdoor sports venues within the area was simulated for scheme design,compared and predicted,with the utility of the venue as an important basis for selection.This paper shifts the research perspective to adolescents,by quantifying their demand preferences for outdoor sports venues,to provide theoretical support for the construction of outdoor sports venues from the perspective of adolescents,with a view to helping facilitate the creation of future urban public spaces. |