Constructing a system to measure accessibility considering attributes of road

本研究尝试在GIS平台上对建筑尺度的可达性进行测量。获得了以下结果。首先，作为测量从东京阿达奇区东北区的所有建筑物到便利店的最短道路距离的可达性的结果，可以清楚地看出，可达性由各种因素决定，诸如道路网络模式、设施与道路网络之间的位置关系、设施之间的位置关系、所设置的建筑物的数量、并以便利店为例，比较了街区尺度和建筑物尺度的可达性。结果表明，具有最大程度的内部方差的邻域具有相同程度的差异，在整个研究区域的可达性。由于80%的便利店位于构成社区边界的沿着街道或社区外， ...更多信息 第三，作为建筑尺度可达性的案例研究，分析了建筑物各层之间的可达性差异，说明了在建筑尺度上测量可达性的好处。对建筑规模的车站的可达性测量也表明，一条名为筑波快车的新线路的开通极大地改善了可达性。第四，为了测量考虑道路条件和规则的可达性，本研究构建了一个系统，该系统使用ArcPad和GPS在现场获取道路属性，并通过边缘将数据传输到我办公室的服务器。第五，本研究还构建了一个系统，使用ArcObject测量可达性。用户点击ArcGIS表示的数字地图上的测量点。然后，系统能够在该点周围生成缓冲区，并对缓冲区中的设施的数量进行计数，并将缓冲区中的人口与缓冲区中包括的区域成比例地划分。最后，系统能够计算测量点的可达性指数。少

This study tries to measure accessibility at building scale on GIS. The following results are obtained. First, as the result of measuring accessibility as the shortest road distance to convenience stores from all buildings in Northeast Area of Adachi Ward, Tokyo, it becomes clear that the accessibility is determined by various factors such as road network pattern, positional relationship between facility and road network, positional relationship among facilities, number of buildings located, and positional relationship between building and road network.Next the accessibility at neighbourhood scale is compared with the accessibility at building scale through a case study of convenience store. It is revealed that the neighbourhood with the largest degree of inner variance has the same degree as the difference in accessibility found in the whole study area. As eighty percentages of the convenience stores are located along streets constructing the boundaries of neighbourhoods or outside th … More em, if the accessibility at neighbourhood scale is measured at a centre of neighbourhood, then average distance becomes longer because the centre is distant place to the location of convenience store.Third, as the case studies of accessibility at building scale, the difference in accessibility among the stories of buildings is analyzed to show the benefit to measure accessibility at building scale. The accessibility measured to stations at building scale also reveals that the opening of a new line called as Tsukuba Express greatly improved the accessibility. The hotels in Kyoto were also evaluated in terms of accessibility at building scale.Fourthly, to measure the accessibility considering the conditions and regulations for road, this study constructs a system that acquires the attribute of road using ArcPad and GPS in the field and transmits the data to the server in my office through edge.Fifthly, this study also constructs a system to measure accessibility using ArcObject. A user clicks a measurement point on digital map represented by ArcGIS. Then the system is able to generate a buffer around the point and count the number of facilities in the buffer and divide population in the buffer in proportion to the area included in the buffer. Finally the system is able to calculate an accessibility index at the measurement point. Less