Research on GIS Expressway Route Selection Based on AHP-Entropy Weight Method
GIS spatial analysis technology and comprehensive evaluation method are used for highway route planning, and a highway route selection model based on AHP-entropy weight method is established to reduce the complexity of planning process. Taking Tangshan section of Hebei coastal expressway as the research object, nine geographical index evaluation factors including land use type, slope, slope direction, hydrology, fault, soil type, GDP, tourism resources and ecological sensitivity were selected to establish the decision model of expressway route selection scheme based on AHP and entropy weight method respectively. Combined with the two methods, a comprehensive evaluation model is established to generate the optimal path and compare the original path. The results show that the optimal path generated by combining the two evaluation methods has a high fit with the original path. The highway route selection model based on AHP-entropy weight method has certain advantages in comparison.
road engineeringhighway route selectiongeographic information systemhighwayAHP