Skip to main content
Log in

Geohazards and risk assessment along highway in Sichuan Province, China

  • Original Article
  • Published:
Journal of Mountain Science Aims and scope Submit manuscript

Abstract

Geohazards along highways are the main natural hazards that could affect the safety and operation of highway systems. Understanding the risks faced by highways in areas affected by geohazards is an urgent problem to be solved. This study used historical geohazard events from Sichuan Province and highway network data to propose a geohazard risk index that reflects the risk geohazards along highways. Furthermore, this work applied the entropy method and expert scoring to calculate the weight of the index. The spatial distributions of landslides, debris flows, collapses, and unstable slopes along the highways were analysed based on ArcGIS spatial statistics, and the highway geohazard intensity index were obtained. The relationships between slope, rainfall, vegetation coverage, rock type, land use, and incision depth with geohazards were analysed, and the highway geohazard susceptibility index was calculated by the weighted information method. Based on the intensity and susceptibility index, we obtained a geohazard risk index which can better evaluate the risk of highways, and made a highway geohazard risk map to aid the prevention and mitigation of geohazards along highways and assist with highway network planning.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

Reference

Download references

Acknowledgments

This research was funded by Chang’an University (Xi’an, China) through the National Key Research & Development Program of China (2020YFC1512003).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Jia-yu Dong.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Yang, Hz., Dong, Jy. & Guo, Xl. Geohazards and risk assessment along highway in Sichuan Province, China. J. Mt. Sci. 20, 1695–1711 (2023). https://doi.org/10.1007/s11629-022-7500-9

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11629-022-7500-9

Keywords

Navigation