Development and Calibration of a Long Distance Passenger Traffic Assignment Model

摘要

This paper studies the assignment of long distance passenger traffic on a highway corridornetwork. First, we propose a traditional model for the long distance traffic assignmentconsidering interactions with local commuter traffic. It addresses the effect of local sub-networkson highway corridors. An interactive algorithm is developed to solve for the exact solution.Then, to address the potential computational issues that arise therein, a decomposition method isproposed by introducing a new concept of corridor elasticity. An assignment procedure for longdistance passenger traffic is developed accordingly. Numerical tests show that the proposeddecomposition method makes significant improvements in computational performance at a smallloss of optimality. This decomposition method well approximates the exact assignment from thetraditional formulation, especially when the highway corridors are near-saturation. The proposeddecomposition method appears practical for application.