%0 Journal Article
%T Solutions to Sensitivity Analysis for the Equilibrium Network Flow<br>用户均衡网络中的敏感度分析方法
%A CHENG Lin
%A WANG Wei
%A WANG Jing-yuan
%A WANG Xin
%A <br>程琳
%A 王炜
%A 王京元
%A 王欣
%J 系统工程理论与实践
%D 2004
%I 
%X The equilibrium network flow problem is formulated in its general form as a mathematical programming, and sensitivity analysis are developed for the mathematical programming. The sensitivity analysis is to calculate the derivatives of the equilibrium link flows with respect to perturbations, which are of the cost functions, of the origin-destination matrix and of the link capacities. At the same time, a path-based gradient projection with variable step is proposed, and adopted in the sensitivity. The numerical example illustrates the applications of sensitivity analysis in traffic planning, construction and operations.
%K deterministic user equilibrium
%K traffic network
%K sensitivity analysis
%K gradient projection<br>确定用户均衡
%K 交通网络
%K 敏感度分析
%K 投影梯度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=962324E222C1AC1D&jid=1D057D9E7CAD6BEE9FA97306E08E48D3&aid=15318DFF0936C65A&yid=D0E58B75BFD8E51C&vid=B91E8C6D6FE990DB&iid=708DD6B15D2464E8&sid=8477411EEDB08A86&eid=CDEBD1ACE0A4C1C1&journal_id=1000-6788&journal_name=系统工程理论与实践&referenced_num=5&reference_num=8