A Study On Mapping Methodology Of Street Space

Street space is a space not only enclosed by entities, but also for public daily activities for citizens. The spatial characteristics can be represented in the street entity and in its attribute. Traditional ways of architectural drawings only can represent street space entity in a limited way, unable to describe other attributes of the street space. Mapping is the most commonly used way of showing a three-dimensional world through a two-dimensional drawing. The breadth and creativity of the mapping theory enable it to describe spatial characteristics. Here comes the question.In 1984, Kevin Lynch concluded four key parts of mapping. Several western classical theories have tried to settle these difficulties by mapping operations in respect of mapping contents, mapping methods. The literature review of James Corner stresses the function, creativity and process of mapping theory. This paper, based on previous studies, proposes three objects of spatial characteristics of Chinese modern city streets:interface-interface signs, streetscape sequences and activities of pedestrians. This tentative empirical study is on mapping method by examining its process (information recording and extraction), establishment of database and representation of mapping, and relevant research technologies (Chapter Two) and procedures.Interface & interface signs refer to annexed objects with several physical attributes, streetscape sequences images which reflected by visual perception, and activities of pedestrians humans with behavioral competence. With regard to information recording and extraction (Chapter Three), the author examined recording under different settings of cameras, and extraction through different media. There are several ways of extraction, such as line of reference, grid and time measurement. In Chapter four, which is about establishment of database and representation of mapping, sets of data from the previous chapter are grouped and analyzed. After testifying the validity of the data, the author processes the data and then finally realizes representation of mapping the three objects. The representation is based on GIS. Chapter Five studies relevant variables, land usage of adjacent areas, integration value and visibility. Correlation analyses are applied, which enables data comparison and demonstrates validity of the three objects to the street space characteristics.The empirical study is productive. It proves the possibility of using mapping method to express street space:the corresponding relationships between interface & interface signs and the use of the street space, pedestrian’s activities and topology of the street interface are found out and transferred to a new mapping method. Moreover, the paper demonstrates and extends the content and representative methods of mapping method:the mapping in this study is mainly represented through database. Reliable databases are set targeted to different objects and then conclude and testify the relationships between databases and mapping. Also three levels of mapping methods are proposed to deal with different requirements of mapping. Through this series of studies, the mapping methodology becomes operable and scientific, the mapping features are expanded and more relevant researches could be carried on in the future.