Bw. Wie et al., THE AUGMENTED LAGRANGIAN METHOD FOR SOLVING DYNAMIC NETWORK TRAFFIC ASSIGNMENT MODELS IN DISCRETE-TIME, Transportation science, 28(3), 1994, pp. 204-220
We develop and test an augmented Lagrangian method for solving dynamic
traffic assignment models formulated as optimal control problems. Our
presentation is in terms of the discrete time, system optimal traffic
assignment problem. However, the basic ideas presented here are readi
ly applied to continuous time models and to other behavioral assumptio
ns regarding traffic assignment which may be expressed as optimal cont
rol problems. The proposed algorithm obviates the need for path enumer
ation and exploits the natural decomposition of the traffic assignment
problem by time period which is possible when an optimal control form
ulation is employed.