Evaluating the process of physical development of residential areas towardsVulnerable areas (Case study: Ilam city)

Document Type : applied research

Authors

1 PhD of geomorphology, Member of the faculty of the University of Police Sciences, Tehran, Iran

2 University of Tehran

3 PhD. of Geomorphology, University of Tehran, Tehran, Iran

4 Master of Science in Geography and Urban Planning, Malayer Azad University, Malayer, Iran

10.22034/ermr.2025.63620

Abstract

Natural hazards are among the challenges facing many cities, including Ilam. The location of the city of Iran in the Zagros belt and leading to the mountain unit has caused this city to have a high vulnerability potential against natural hazards such as earthquakes and landslides. Due to the importance of the topic, in this research, the physical development process of Ilam city towards hazardous areas has been evaluated in recent years. In this research, Landsat satellite images, SRTM 30 meters high digital model, the layer related to the epicenter of the earthquakes and other layers of information are used as the most important research data. The most important research tools are ArcGIS, TerrSet and ENVI. In this research, the vulnerable areas against earthquake and landslide hazards have been identified first, and then the development process of the residential areas of this city towards vulnerable areas during the years 1992 to 2022 has been evaluated. Based on the results, a large part of the urban area of Ilam, including its northern and eastern regions, are exposed to the dangers of earthquakes and landslides. Also, the results of this research have shown that the city of Ilam in 1992 had an area of about 7.3 square kilometers, of which about 5.6 square kilometers were in the high risk of vulnerability class. Also, in 2022, it had an area of about 17.8 square kilometers, of which about 11.5 square kilometers was in the high risk of vulnerability category. According to the obtained results, during the recent years, a large part of the constructions of Ilam city have been done in areas with high risk of dangerousness

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History

  • Receive Date: 13 April 2025
  • Revise Date: 15 June 2025
  • Accept Date: 17 August 2025

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