In order to effectively adjust the supporting bus lines after the opening of a new subway line,an optimi- zation of metro and bus network is made from the viewpoint of travel behavior.By introducing the prospect theory to describe the behaviors of bounded rational travelers and by assuming that travelers always chase the maximum value of foreground,a model for route selection is set up.Moreover,the equilibrium state of the road network under the prospect theory and the utility theory is analyzed by testing the network.The results show that the time of equilibrium state under the prospect theory is longer than that under the utility theory,and that the former shows obvious flow oscillation.In addition,the influence of the change threshold of foreground value on the equilibrium flow reflects the risk resistance of travelers to uncertainty,so that it is more suitable for the real situation and more effective in determining the final bus line.