基于改进断裂点理论的机场吸引范围界定

合理界定机场吸引范围，是构建坚固民航运输网络的关键环节。现有的机场吸引范围界定方法，很少考虑与其衔接的地面交通网络，以及旅客出行偏好的影响。为提高机场吸引范围的实用性，本文以城市断裂点理论为基础，对其中的重要参数予以改进。首先，以综合交通运输为背景，指出发达的公路和铁路运输网络对民用机场具有很大的竞争与促进作用，并提出以地面交通出行时间为量化标准的吸引范围界定方法。然后，为分析旅客出行偏好的行为机理，针对于与机场衔接的地面交通网络来建立离散选择模型。其次，将研究区域的机场所在城市看作是一个整体，运用专家评价法和熵权法综合确定机场的吸引规模，并通过机场吞吐量与城市对外出行总量针对机场规模进行修正。最后，通过算例验证改进模型的实际可操作性，为确定多机场系统吸引范围界定提供新的思路和方法。

Division of airport attraction range in multi-airport system based on improved weighted breakpoint theory

Defining the reasonable airport attraction range is the key link to build a strong civil aviation transportation network. The existing methods for defining the attraction range of airports seldom consider the ground transportation network connected with them and the influence of passengers'' travel preferences. In order to improve the practicability of airport attraction range, based on the theory of urban breaking point, this paper improves some important parameters. First of all, with the comprehensive transportation as the background, it is pointed out that the developed road and railway transportation networks have great competition and promotion effect on civil airports, and a method of defining the attraction range with the travel time of ground transportation as the quantitative standard is put forward. Then, in order to analyze the behavior mechanism of passengers'' travel preference, a discrete choice model is established for the ground transportation network connected with the airport. Secondly, the city where the airport in the study area is located is regarded as a whole, and the attraction scale of the airport is comprehensively determined by using the expert evaluation method and the entropy weight method, and the airport scale is revised according to the airport throughput and the city''s total outbound travel. Finally, the practical operability of the improved model is verified by an example, which provides a new idea and method for determining the attraction range of multi-airport system.