Study on ant colony optimization for traffic assignment problem

Traffic assignment model is difficult to get global solution and impact its practical application. In order to solve this problem, ant colony optimization (ACO) was applied to multi-path traffic assignment problem. Tabu matrixes based on paths are established for ant colony optimization (ACO). Traffic assignment was processed by ACO, evaluated and filtered ant lines according to optimal aim, circulated until meet terminate qualification. A practical case illustrated that traffic assignment results better than reference optimal aim, and provide an algorithm to traffic assignment model.