This paper proposes a parallel processing method of genetic algorithm for the traffic equilibrium
assignment problem with fixed traffic demand in order to forecast the traffic volume accurately. In the
algorithm design, some improved steps such as the multi-dimensional parallel crossover, variational rates of
crossover and mutation, the elitism and the punishment of objective function are taken, so that the
computing speed is greatly improved; the computation time and the assignment complexity are substantially
reduced. It founds a new way for traffic assignment problems, and at the same time shows a potential
practical prospect for the genetic algorithm to be used in the traffic programming.