交通均衡原则下的商品供应策略

采用Ｌｏｇｉｔ模型和Ｗａｒｄｒｏｐ用户均衡原则描述购物活动中购物者对供货点及到达供货点路径的选择行为，以确定各供货点的供货量。针对所建立的模型难于求解，建立了与之等价的极值模型及搜索算法，基于一定的市场调查和交通信息，文中的结果可服务于供货决策。

Supplying Model of Goods under the Principle of Traffic Equilibrium

In order to determine what quantity of goods should be provided at various points, the Logit model and the Principle of Wardropian User's Equilibrium (UE) are used to describe the buyers' choosing behavior of supplying points and the road routes which connect the supplying points and the demand points in this paper respectively. With regard to the difficulties to solve the developed models, an equal non-linear model and its iteracting algorithm are also constructed. Based on a survey of the market and certain traffic information, the model proposed in this paper can be used to support supplying decisions.