Information Effects in Transport with Stochastic Capacity and Uncertainty Costs
在随机均衡模型中引入旅行时间不确定性成本，分析向出行者提供信息的影响，发现忽略不确定性成本会低估驾驶员信息系统作为效率改进政策工具的潜力。
In this paper the impact of information provision to travelIers using a model based on a stochastic equilibrium concept is analysed.A new analytical framework is proposed by inc1uding a specific term related to the costs of travel-time uncertainty, per se, into the generalised cost function.Different driver information models are analysed to assess the efficiency-improving features of driver information systems compared with the (optimal) first-best policy of road pricing.The resu1ts reveal that the potentialof driver information systems as an efficiency-improving policy instrument are underestimated if costs of uncertainty are ignored.