Integrated estimation of seismic physical vulnerability of Tehran using rule based granular computing

H. Sheikhian, M. R. Delavar, A. Stein

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

4 Citations (Scopus)
11 Downloads (Pure)

Abstract

Tehran, the capital of Iran, is surrounded by the North Tehran fault, the Mosha fault and the Rey fault. This exposes the city to possibly huge earthquakes followed by dramatic human loss and physical damage, in particular as it contains a large number of non-standard constructions and aged buildings. Estimation of the likely consequences of an earthquake facilitates mitigation of these losses. Mitigation of the earthquake fatalities may be achieved by promoting awareness of earthquake vulnerability and implementation of seismic vulnerability reduction measures. In this research, granular computing using generality and absolute support for rule extraction is applied. It uses coverage and entropy for rule prioritization. These rules are combined to form a granule tree that shows the order and relation of the extracted rules. In this way the seismic physical vulnerability is assessed, integrating the effects of the three major known faults. Effective parameters considered in the physical seismic vulnerability assessment are slope, seismic intensity, height and age of the buildings. Experts were asked to predict seismic vulnerability for 100 randomly selected samples among more than 3000 statistical units in Tehran. The integrated experts' point of views serve as input into granular computing. Non-redundant covering rules preserve the consistency in the model, which resulted in 84% accuracy in the seismic vulnerability assessment based on the validation of the predicted test data against expected vulnerability degree. The study concluded that granular computing is a useful method to assess the effects of earthquakes in an earthquake prone area.

Original languageEnglish
Title of host publicationInternational Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
PublisherInternational Society for Photogrammetry and Remote Sensing (ISPRS)
Pages187-193
Number of pages7
Volume40
Edition3W3
DOIs
Publication statusPublished - Aug 2015
EventISPRS Geospatial week 2015 - La Grande Motte, France
Duration: 28 Sep 20153 Oct 2015
https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-3-W3/index.html (Full text Open Access proceedings)

Publication series

NameInternational Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives
PublisherCopernicus
ISSN (Print)1682-1750

Conference

ConferenceISPRS Geospatial week 2015
Abbreviated titleISPRS 2015
CountryFrance
CityLa Grande Motte
Period28/09/153/10/15
Internet address

Keywords

  • Earthquake physical vulnerability assessment
  • Geospatial information system (GIS)
  • Granular computing (GRC) algorithm
  • Multi-criteria decision making

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