Geomatics Comprehensive Evaluation Index Model for Pipeline Route Optimisation

Oil and gas pipeline routing criteria, sub-criteria, parameters and the routine alternatives were reviewed from literature and later structured using the concept of Multi-Criteria Decision Analysis (MCDA) based on Analytical Network Process (ANP) that offer a feedback mechanism model of these factors to obtain their various weights for prioritization, through questionnaire administration. Moreover, the land use land cover for the study areas were sourced through the acquisition of LANDSAT 8 imageries, thereafter processed, and classified. Other spatial data were sourced and bathymetry information were further modelled in ArcMap 10.2 environment in order to obtain an optimum route for the study areas. The spatial analysis thereafter was carried out to validate the model for the optimal route that out-performed the original design route and three other alternative routes.

研究从文献中梳理得到油气管道选线的准则、子准则、参数及常规备选方案，并基于网络层次分析法（Analytical Network Process, ANP）构建多准则决策分析（Multi-Criteria Decision Analysis, MCDA）框架对其进行结构化处理，该框架可搭建各因素的反馈机制模型，并通过问卷调查获取各因素的优先级权重。此外，研究通过获取Landsat 8影像获取研究区的土地利用与土地覆被数据，随后对影像进行处理与分类。研究还收集了其余空间数据，并在ArcMap 10.2环境中对水深信息进行建模，以生成研究区的最优选线方案。随后通过空间分析对该最优路线模型进行验证，结果表明该最优路线优于原始设计路线及另外三条备选路线。