Abstract: A target-oriented route utility model is proposed to study travelers route choice behavior with their perception errors on the stochastic traffic network, where travel time and travel time reliability are considered, and travelers utility is determined by the targets that achieved. There are three characteristics of this new model. The first one is that after incorporating travelers perception errors, perceived travel time and perceived travel time reliability are obtained; the second one is that stochastic correlation between the perceived values are captured by the copula with their marginal distributions; the third one is that travelers specify one target for each attribute, and the target interaction, namely the complementarity relationship between the targets, is modeled. Furthermore, a target-oriented bi-attribute user equilibrium model is proposed based on this new route choice model, which is formulated as a variational inequality problem and solved with method of successive average. Finally, the numerical results show the performance of different traveling behavior and validate the solution algorithm, and the sensitivity analysis with respect to the related parameters is also performed. The proposed model extends the scope of studies on travelers route choice behavior, which can provide scientific support to the design and implementation of policies.

Key words: urban traffic, bi-attribute user equilibrium, target-oriented analysis, traffic time and travel time reliability, perception error