导　　师： 夏斌;谭建军

学科专业： G0904

授予学位： 博士

作　　者： ;

机构地区： 中国科学院广州地球化学研究所

摘　　要： 城市公共交通领域数据具有复杂的时空特征,需要一个科学高效的时空数据模型来存储和组织.传统的基态修正模型存在历史数据的检索时间长和时空对象的空间关系处理不好两个方面的缺陷,需要针对具体的应用需求进行改进和扩展.数据模型是gis应用系统建设的核心和基础,城市公共交通行业数据模型的建立可以为gis-t在该行业的应用奠定基础.本文首先以时态gis和时空数据模型理论为基础,在基态修正模型的基础上进行改进和扩展,提出了基于基态修正的面向对象时空数据模型理论.然后应用理论研究的成果,建立了城市公共交通领域的时空数据模型,对理论模型进行了实例验证.最后通过广州市公交规划地理信息系统的设计与开发对理论进行了进一步的验证和应用. The data in urban public transport is characterized by the complicated spatio-temporal nature, which requires a scientific and efficient spatio-temporal data model to store and manage it. Due to deficiency in searching data and processing spatial relationship of spatio-temporal objects, however, traditional models built on base state with amendments have to be improved and expanded to meet specific application requirements. Data modeling is a key basis to establish a GIS application system. Thus, the construction of data model of urban public transport will lay the foundation for GIS-T application in this field.Firstly, based on theories of temporal GIS and spatio-temporal data models, the thesis ameliorates and enlarges the models built on base state with amendments and, on this basis and presents an approach of object-oriented spatio-temporal data model. Secondly, following the approach, this thesis builds a spatio-temporal data model of urban public transport and further provides some cases to examine this theoretical model. Finally, this model is employed in the design and development of GIS for planning of urban public traffic in Guangzhou, China, with further examination for this model being conducted.Specifically, targeting the existing problems of traditional models built on base state with amendments, this research proposes 'critical index of object variation' to determine a base state interval and solves the problems of data store and search. To overcome the limitations of relational paradigm of relational database and object-relation GIS, an approach of event-driven and object-oriented spatio-temporal data modeling is presented in this thesis, which solves technical difficulties in object-oriented spatio-temporal data modeling. Through the approach of data modeling, a spatio-temporal data model better matches the nature of objective world, thus solving the arrangement problem of spatial data. The construction of data model of urban public transport has illustrated theoretical exploration in data modeli

关 键 词： 城市公共交通 时空数据模型 基态修正 事件驱动 公共交通规划

领　　域： [交通运输工程] [交通运输工程] [天文地球] [天文地球]