Frequency-domain Optimization Model of Multi-objective Stochastic Transportation Path Choice

Based on stochastic property of the transportation system,the function relation between stochastic travel time,the loss,and the flow are studied.A Frequency-domain Spanning Graph(FSG) model for searching multi-objective optimal path of the time-dependent stochastic transportation network is presented,and the corresponding algorithm is designed to deal with the model.Through the mutual transformation of probability function between time-domain and frequency-domain,O-D multi-objective probability change is capable of quantitative analysis.Continuous probability distribution and discrete probability distribution can be dealt with in the model.Experiment with Matlab proves the feasibility and effectiveness of the algorithm.