caa a22 4500 467927979 CHVBK 20180406152935.0 cr unu---uuuuu 170328e20060301xx s 000 0 eng 10.1007/s10109-005-0009-2 doi (NATIONALLICENCE)springer-10.1007/s10109-005-0009-2 Uniform network transformation for points pattern analysis on a non-uniform network [Elektronische Daten] [Atsuyuki Okabe, Toshiaki Satoh] In the real world, there are many kinds of phenomena that are represented by points on a network, such as traffic accidents on a street network. To analyse these phenomena, the basic point pattern methods (i.e. the nearest neighbour distance method, the quadrat method, the K-function method and the clumping method) defined on a plane (referred to as the planar basic point pattern methods) are extended to the basic point pattern methods on a network (referred to as the network basic point pattern methods). However, like the planar basic point pattern methods, the network basic point pattern methods assume a uniform network and this assumption is hard to accept when analysing actual phenomena. To overcome this limitation, this paper formulates a transformation, called the uniform network transformation, that transforms a non-uniform network into a uniform network. This transformation provides a simple procedure for analysing point patterns on non-uniform networks: first, a given non-uniform network is transformed into a uniform network; second, the network basic point pattern methods (which assume a uniform network) are applied to this transformed uniform network. No modification to the network basic point pattern methods is necessary. The paper also shows an actual application of this transformation to traffic accidents in Chosei, Japan. Springer-Verlag, 2005 Uniform network transformation nationallicence Network spatial analysis nationallicence Nearest neighbour distance method nationallicence Quadrat method nationallicence K -function method nationallicence Okabe Atsuyuki Center for Spatial Information Science, Department of Urban Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-8656, Tokyo, Japan aut Satoh Toshiaki Center for Spatial Information Science, Department of Urban Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-8656, Tokyo, Japan aut Journal of Geographical Systems Springer-Verlag 8/1(2006-03-01), 25-37 1435-5930 8:1<25 2006 8 10109 https://doi.org/10.1007/s10109-005-0009-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10109-005-0009-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Okabe Atsuyuki Center for Spatial Information Science, Department of Urban Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-8656, Tokyo, Japan aut NATIONALLICENCE 700 1- Satoh Toshiaki Center for Spatial Information Science, Department of Urban Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-8656, Tokyo, Japan aut NATIONALLICENCE 773 0- Journal of Geographical Systems Springer-Verlag 8/1(2006-03-01), 25-37 1435-5930 8:1<25 2006 8 10109 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer