Time series assessment on landslide occurrences in an area undergoing development

Norbert Simon, Michael Crozier, Mairead de Roiste, Abdul Ghani Rafek, Rodeano Roslee

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

This study assesses the influence of development on landslide occurrences in a rapidly developing area, Kota Kinabalu in Sabah Malaysia, across three assessment years (1978, 1994 and 2010). Two development indicators, land use and road density, were used to measure the influence of development on landslide occurrence. Land use was classified into four categories (barren, forest, developed and other), and road density was classified into low (< 50m/40000m2), moderate (50-150m/40000m2) and high (> 150m/40000m2). Landslide density analysis was used to calculate the concentration of landslide for the different land use and road density categories. The number of landslides in developed areas increased from 19 landslides/100km2 in 1978, to 29 landslides/100km2 in 1994 and to 50 landslides/100km2 in 2010, mirroring an increase in land use for development purposes from 8 per cent in 1978 to 27 per cent in 2010. Landslide density also gradually increased in the high road density class from 10 landslides/100km2 in 1978, to 30 landslides/100km2 in 1994 and 62 landslides/100km2 in 2010. These results show that road construction activities influence landslide occurrences.

Original languageEnglish
Pages (from-to)98-111
Number of pages14
JournalSingapore Journal of Tropical Geography
Volume36
Issue number1
DOIs
Publication statusPublished - 1 Mar 2015

Fingerprint

development area
time series
landslide
land use
road
road construction
Malaysia
development indicator

Keywords

  • Development
  • Land use density
  • Landslide
  • Landslide density
  • Rainfall
  • Road density

ASJC Scopus subject areas

  • Geography, Planning and Development
  • Earth-Surface Processes

Cite this

Time series assessment on landslide occurrences in an area undergoing development. / Simon, Norbert; Crozier, Michael; de Roiste, Mairead; Rafek, Abdul Ghani; Roslee, Rodeano.

In: Singapore Journal of Tropical Geography, Vol. 36, No. 1, 01.03.2015, p. 98-111.

Research output: Contribution to journalArticle

Simon, Norbert ; Crozier, Michael ; de Roiste, Mairead ; Rafek, Abdul Ghani ; Roslee, Rodeano. / Time series assessment on landslide occurrences in an area undergoing development. In: Singapore Journal of Tropical Geography. 2015 ; Vol. 36, No. 1. pp. 98-111.
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