Changing in fire-inextinguishable areas (FIAs) in Tokyo based on Euclidean and road network distances

Fire-inextinguishable areas (FIAs) are conventionally defined as the area further than 140 meters in Euclidean distance from roads whose width is equal to or wider than 6 meters (called wide roads) by assuming that road networks are dense. However, since road networks clearly exhibit irregular patterns, FIAs should be defined as a set of road networks further than 200 meters (the maximum length of the extension of fire hoses) from wide roads in road network distance. In this paper, FIAs in Tokyo were identified based on Euclidean and road network distances from the two-levels of wide road networks whose road width is equal to or wider than 6 and 12 meters in 2007 and 2015. It was found that (1) FIAs based on Euclidean and road network distances tend to be the same as each other; (2) FIAs in the western region of Tokyo decreased in terms of their size and numbers due to widening narrow road networks; and (3) FIAs in Tokyo were generally unchanged in this period.

• Record URL:
  • https://doi.org/10.11361/journalcpij.59.523
• Record URL:
  • https://www.jstage.jst.go.jp/article/journalcpij/59/3/59_11001/_pdf
• Record URL:
  • https://scholar.google.com/scholar_lookup?title=Changing+in+fire-inextinguishable+areas+(FIAs)+in+Tokyo+based+on+Euclidean+and+road+network+distances&author=H.+Usui&publication_year=2024
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09160647
• Authors:
  • Usui, Hiroyuki
• Publication Date: 2024

Language

• English
• Japanese

Media Info

• Media Type: Web
• Features: References; Tables;
• Pagination: pp 523-530
• Serial:
  • Journal of the City Planning Institute of Japan
  • Volume: 59
  • Issue Number: 3
  • Publisher: City Planning Institute of Japan
  • ISSN: 0916-0647
  • EISSN: 2185-0593
  • Serial URL: https://www.jstage.jst.go.jp/browse/journalcpij/-char/en

Subject/Index Terms

• TRT Terms: Disasters and emergency operations; Euclidean spaces; Fires; Land use planning; Network nodes; Trip length
• Geographic Terms: Tokyo (Japan)
• Subject Areas: Design; Highways; Planning and Forecasting; Security and Emergencies;

Filing Info

• Accession Number: 01937871
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Nov 22 2024 2:56PM