Landslides are the most destructive geological hazard in the hilly regions. For systematic landslide mitigation and management, landslide evaluation and hazard zonation is required. Over the past few decades several techniques have been developed that can be used for landslide evaluation and zonation. These techniques can broadly be classified into qualitative and quantitative approaches. Qualitative approaches include geomorphological analysis and heuristic techniques whereas quantitative approaches include statistical, artificial intelligence and deterministic techniques. In quantitative techniques prediction for landslide susceptibility is based on the actual realistic data and interpretations. Further, the quantitative techniques also overcome the subjectivity of qualitative approaches. Each of these techniques may consider different causative factors and utilizes various means for factor evaluation and analysis. When compared, each of these techniques has its own advantage and disadvantage over other techniques. The selection of appropriate technique for landslide hazard evaluation and zonation is very crucial. The factors that need to be considered to adopt an appropriate approach are; investigation purpose, the extent of the area to be covered, the type of mapping units, the scale of map to be produced, type of data to be used, type of landslides, availability of resources, capability and skill set of an evaluator and the accessibility to the study area. The main aim of this article is to present a comprehensive review on various techniques and approaches available for landslide susceptibility and hazard zonation mapping. Further, attempt is also made to assess the effectiveness of these techniques in landslide hazard zonation studies.

中文翻译：

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滑坡敏感性评估和灾害分区技术–综述

滑坡是丘陵地区最具破坏力的地质灾害。为了系统地减轻和管理滑坡，需要进行滑坡评估和灾害分区。在过去的几十年中，已经开发出了几种可用于滑坡评估和分区的技术。这些技术可以大致分为定性和定量方法。定性方法包括地貌分析和启发式技术，而定量方法包括统计，人工智能和确定性技术。在定量技术中，滑坡敏感性的预测是基于实际的实际数据和解释。此外，定量技术还克服了定性方法的主观性。这些技术中的每一种都可以考虑不同的原因因素，并利用各种方法进行因素评估和分析。比较时，这些技术中的每一种都有其自身的优势和劣势。选择合适的滑坡灾害评估和分区技术非常关键。需要采用适当方法的因素是；调查目的，要覆盖的范围，制图单位的类型，要制作的地图的比例，要使用的数据的类型，滑坡的类型，资源的可用性，评估员的能力和技能以及访问研究区域。本文的主要目的是对滑坡敏感性和灾害分区图的各种可用技术和方法进行全面综述。