No abstract

In this paper, six urban districts of Beijing were used in a case study in which the check-in data of Sina Micro-blog (Weibo), a micro-blogging website, from September 24 to October 7, 2014, were acquired, and the spatial and temporal distributions of the check-in activities of urban residents and their impacting factors were investigated through GIS kernel density analysis and SPSS correlation analysis. The results showed that in a continuous time period, the check-in activities assumed a wavy periodic motion with a cycle of 24 hours and also time differentiation characteristics. The spatial variations in the check-in activities in spatial agglomeration centers among the districts were somewhat large, with Chaoyang District being the most concentrated area among the spatial agglomeration centers. The distribution of the check-in activities exhibited significant features of rating-scale and core-periphery. The factors affecting the time distribution of the check-in activities mainly derived from the regularity of human activities, and the distance attenuation law and the urban services industry exerted important impacts on the spatial structure of check-in activities.

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This paper presents the development of a modelling framework for synthesizing and visualizing the spatial impacts of multiple factors with respect to the project site in architectural and urban design. In design practice, collecting and processing the information about the project site is critical to the final outcome of the design proposal. Given the complexity observed in our built-up environment, the information that architects need to process and respond to is enormous in terms of magnitude and variety. The proposed modelling framework aims to quantify the spatial impacts of various site factors on a consistent basis. The significance of this research lies in synthesizing the impacts from multiple factors through a digital interface. The three-dimensional form of data representation within the digital context may inspire schematic thoughts of architects. By adjusting the parameterization of each factor, architects can prioritize the design issues and explore a wide spectrum of design schemes.