Outdoor Thermal Comfort And Activities In The Urban Residential Public Open Spaces In Cold Citiese

Comfortable and pleasant outdoor thermal environment is a very important factor in the quality of outdoor space environment.As an important place for residents' daily activities,the quality of public open spaces of residential area is directly related to the quality of users' life,including the users' daily leisure activities and neighborhood communications,and may cause a certain degree of influence on their health.Therefore,the thermal comfort of residential public space should be paid full attention to.Under the principle of people-oriented,study the relationship between the residential public space micro-climate environment,thermal comfort and users' behavior to meet users' needs can provide reference for the improvement of residential outdoor space environment quality.Churchill said,"we shape the environment,and the environment shapes us.".In the long-term effects of climate conditions,the thermal comfort of users will show obvious regional differences.In China,the land located in the cold region is vast,the thermal comfort must be different from other climate zones,the winter of which is cold,summer and transition seasons are the main period for outdoor activities.So the study of transition seasons and summer periods of the cold city is of great significance to outdoor comfort.Based on this,this paper studies the users' thermal comfort and its relationship with behavior by quantitative and qualitative methods.First of all,according to the characteristics of urban residential space in cold area,this paper selected three representative residential public space in Harbin for empirical research.Using field measurements,questionnaires,interviews and observation methods to explore the microclimate environment factors,as well as the relationship between micro-climate environment,outdoor thermal comfort and outdoor activities.The results showed that during spring transition season period in cold city users generally considered "warm" is comfortable,the summer period "moderate" comfortable;the thermal comfort threshold of Harbin residents with PET value range is 10.4-25.3?,the bottom line is far low than that of temperate zones and subtropical zones,showing that the cold city thermal comfort has obvious regional characteristics;the influence of micro-climate in transition season period on users' activities is significant,the summer period is not;when the micro-climate conditions changed,the users will adjusted themselves with a series of adaptive behaviors,such as attendance changes,the choice of position and movement,the preference for sun zone and other micro behaviors.By studying the users' thermal psychology and the relationship between microclimate and the users' behavior in three typical residential public spaces of Harbin,and from the view of spatial planning of typical residential space improvement in residential area,this paper established the space thermal comfort goal,and give suggestions from the three perspectives of human microcosmic planning,improving micro-climate environment and the activities planning respectively to improve the thermal comfort during the period of transition and summer seasons,which can provide a reference to a fully understanding of the living space of the city in winter.