Automatic generation of the axial lines of urban environments to capture what we perceive
2010 (English)In: International Journal of Geographical Information Science, ISSN 1365-8816, E-ISSN 1362-3087, Vol. 24, no 4, 545-558 p.Article in journal (Refereed) [Artistic work] Published
Based on the concepts of isovists and medial axes, we developed a set of algorithms that can automatically generate axial lines for representing individual linearly stretched parts of open space of an urban environment. Open space is the space between buildings, where people can freely move around. The generation of the axial lines has been a key aspect of space syntax research, conventionally relying on hand-drawn axial lines of an urban environment, often called axial map, for urban morphological analysis. Although various attempts have been made towards an automatic solution, few of them can produce the axial map that consists of the least number of longest visibility lines, and none of them really works for different urban environments. Our algorithms provide a better solution than existing ones. Throughout this paper, we have also argued and demonstrated that the axial lines constitute a true skeleton, superior to medial axes, in capturing what we perceive about the urban environment.
Place, publisher, year, edition, pages
Taylor & Francis Group, 2010. Vol. 24, no 4, 545-558 p.
visibility, space syntax, topological analysis, medial axes, axial lines, isovists
IdentifiersURN: urn:nbn:se:kth:diva-51241DOI: 10.1080/13658810902950351ISI: 000275655500004OAI: oai:DiVA.org:kth-51241DiVA: diva2:463681
QC 201112202011-12-202011-12-102012-03-01Bibliographically approved