Transportation Systems Engineering: Theory and Methods
Transportation Systems Engineering: Theory and Methods
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DOI：
10.1007/978-1-4757-6873-2
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发表时间：
2001-02
影响因子：
3.8
通讯作者：
E. Cascetta
中科院分区：
文献类型：
--
作者：
E. Cascetta
运输系统可以定义为要素及其相互作用的组合，这些要素产生了在给定区域内的旅行需求以及满足这种需求的运输服务供应。这一定义具有普遍性和灵活性，可以适用于不同的情况。系统的具体结构是由问题本身（或问题类别）决定的，在一个特定的地理区域内，社会和经济系统的几乎所有组成部分都以不同的强度相互作用。然而，它实际上是不可能考虑到每一个相互作用的元素来解决运输工程问题。典型的系统工程方法是隔离那些与问题最相关的元素。这些要素以及它们之间的关系构成了分析系统。其余的元素属于外部环境，并且仅根据它们与分析系统的相互作用来考虑。正如后面将要看到的，运输系统工程是面向运输供应项目的设计和评估。一般而言，分析系统包括预计会受到所考虑项目重大影响的要素和相互作用。它
A transportation system can be defined as the combination of elements and their interactions, which produce the demand for travel within a given area and the supply of transportation services to satisfy this demand. This definition is general and flexible enough to be applied to different contexts. The specific structure of the system is defined by the problem itself (or class of problems) for whose solution it is employed.Almost all of the components of a social and economic system in a given geographical area interact with different levels of intensity. However, it is practically impossible to take into account every interacting element to solve a transportation engineering problem. The typical system engineering approach is to isolate those elements, which are most relevant to the problem. These elements, and the relationships among them, make up the analysis system. The remaining elements belong to the external environment and are taken into account only in terms of their interactions with the analysis system. As will be seen later, transportation system engineering is oriented to the design and evaluation of transportation supply projects. In general, the analysis system includes the elements and the interactions that are expected to be significantly affected by the projects under consideration. It