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    Chapter

    An Active-set Algorithm for Discrete Network Design Problems

    In this paper, we formulate a discrete network design problem as a mathematical program with complementarity constraints and propose an active set algorithm to solve the problem. Each complementarity constrain...

    Lihui Zhang, Siriphong Lawphongpanich… in Transportation and Traffic Theory 2009: Go… (2009)

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    Relaxed Toll Sets for Congestion Pricing Problems

    Congestion or toll pricing problems in [HeR98] require a solution to the system problem (the traffic assignment problem that minimizes the total travel delay) to define the set of all valid tolls or the toll set....

    Lihui Bai, Donald W. Hearn… in Mathematical and Computational Models for … (2006)