Study of Land Slide Risk in Highway Engineering

Landslides are among the most destructive natural hazards affecting highway infrastructure, particularly in mountainous and hilly regions where extensive slope modification is required for road construction. The increasing frequency and intensity of landslides have led to significant damage to transportation networks, economic losses, and human casualties worldwide. Highways constructed in unstable terrains face continuous risks due to fragile geology, heavy rainfall, groundwater variation, and human induced disturbances. Despite substantial investments in infrastructure, landslide related damages remain disproportionately high, highlighting the need for a comprehensive and science based risk assessment framework in highway engineering.This study explores the causes, impacts, and mitigation strategies associated with landslides affecting highways. It examines the interplay of geological, hydrological, and engineering factors that influence slope stability and identifies persistent challenges such as insufficient geotechnical investigations, lack of site specific risk assessments, and dependence on conventional stabilization techniques that treat effects rather than root causes. The intensifying impact of climate change manifested through altered rainfall patterns and increased soil saturation further exacerbates slope instability, demanding adaptive and sustainable management practices.The research aims to 1 identify major causative factors of highway landslides, 2 assess the efficiency and limitations of existing mitigation approaches, and 3 propose sustainable engineering and risk management strategies to enhance highway resilience. Through field studies, geotechnical analyses, and risk based evaluations, the study seeks to develop a comprehensive landslide risk assessment model and practical design guidelines that promote safe, sustainable, and cost effective road networks in vulnerable regions. Mehrab Farooq | Er. Ajay Vikram "Study of Land Slide Risk in Highway Engineering" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-9 | Issue-6 , December 2025, URL: https://www.ijtsrd.com/papers/ijtsrd98812.pdf Paper URL: https://www.ijtsrd.com/engineering/civil-engineering/98812/study-of-land-slide-risk-in-highway-engineering/mehrab-farooq