机场群可达性空间布局优化模型

机场群体系利用不均衡、不充分问题正成为交通规划领域和重大工程管理领域急需解决的难题.合理规划机场群体系结构和空间分布,是打破机场群总体服务质量瓶颈、提高运营效率的有效方式.对此,建立基于可达性的机场群空间布局模型,并依据模型的非线性特征,提出了基于粒子群算法的快速求解方法.同时,考虑需求分布的聚集性和随机性,以及不同类...

Spatial Layout Optimization Model of Multi-airport System Based on Accessibility

The unbalanced and inadequate utilization of multi-airport systems becomes an urgent problem in the fields of transportation planning and major engineering management. Rational planning of the constituents and spatial distribution of a multi-airport system is an effective way to remove the bottleneck of the overall service quality and improve the operational efficiency. Therefore, a spatial layout model of the multi-airport system based on accessibility was established, and according to the nonlinear characteristics of the model, a fast solution method based on particle swarm optimization algorithm was proposed. Meanwhile, considering the aggregation and randomness of demand distribution, as well as the coverage scopes, construction costs and support capabilities of airports of different types, by MATLAB simulation, the paper analyzed the influence of the spatial layout of a multi-airport system on the overall service quality so as to improve the service quality of the multi-airport system. The findings of the case study show that the spatial distribution of a multi-airport system can be rapidly optimized and the overall satisfaction of service can be improved by using the spatial distribution model. In addition, the total demands and satisfaction of a multi-airport system support capability increase with the rise of the maximum total investment, but the upward trend gradually becomes slow.