Development an Accessibility Approach to Rank the Transportation Network Components During the Occurrence of Flood Crisis (Golestan Province Case Study)
Development an Accessibility Approach to Rank the Transportation Network Components During the Occurrence of Flood Crisis (Golestan Province Case Study)
复制标题
开发一种无障碍方法，对洪水危机发生期间的交通网络组成部分进行排名（古勒斯坦省案例研究）
DOI：
--
复制
发表时间：
2010
期刊：
影响因子：
--
通讯作者：
Seyyed Hossein Sadati Baladehi
中科院分区：
文献类型：
--
作者：
A. Khaki;A. S. Mohaymany;Seyyed Hossein Sadati Baladehi
洪水危机发生后最重要的问题之一是优先重建道路网的组成部分。在这方面具有重要作用的特征之一是可及性指数。这意味着对整个路网可达性的作用越大，对灾后重建的意义就越大。本研究尝试利用可达性指数对戈莱斯坦省的路网改造进行优先排序。为此，首先利用EMME 2软件对戈莱斯坦省的道路网进行建模，然后根据现状下的日交通量对建模后的道路网进行加载。根据以往的研究，可达性指数包括两个主要参数，即交通量参数和距离维度参数。目前的研究已经尝试，这两个参数组成，被用来作为可及性指数。在此基础上，假设路网中的各个组成部分在洪水危机下都受到了破坏，计算了整个路网在破坏前后的可达性指数。以两个可达性指数之差作为灾后重建中断环节的显著性程度。中断链路的重要程度越高，重建的优先级就越高。
One of the most paramount problems after occurrence the flood crisis is the prioritization of reconstructing the components of roads network. One of the characteristics which have important role in this matter is accessibility index. It means that the more important role to accessibility to whole of the network, the more significance for reconstructing after flood crisis. At present study, it has been tried that with using of accessibility index the reconstruction of roads network of Golestan province is prioritized. For this reason at first the roads network of Golestan province was modeled by EMME2 software and then the modeled network was loaded based on the daily traffic volume at current statue. According to previous researches, the accessibility index includes two main parameters, parameter of volume traffic and parameter of distance dimension. At present study it has been tried that composed of these two mentioned parameters, were used as an accessibility index. At next step, with supposing that each of the roads network components was disrupted under flood crisis, the accessibility index was calculated before and after disrupting the links for whole of the network. The difference between two accessibility indexes was used as a significance degree of disrupted link for reconstruction after flood crisis. The higher degree of significance for disrupted link, the higher prioritization for reconstructing.