Preliminary communication
https://doi.org/10.7307/ptt.v25i2.1288
Bi-Criteria System Optimum Traffic Assignment in Networks With Continuous Value of Time
Xin Wang
Hai-Jun Huang
Abstract
For an elastic demand transportation network with continuously distributed value of time, the system disutility can be measured either in time units or in cost units. The user equilibrium model and the system optimization model are each formulated in two different criteria. The conditions required for making the system optimum link flow pattern equivalent to the user equilibrium link flow pattern are derived. Furthermore, a bi-objective model has been developed which minimizes simultaneously the system travel time and the system travel cost. The existence of a pricing scheme with anonymous link tolls which can decentralize a Pareto system optimum into the user equilibrium has been investigated.
Keywords
elastic demand; value of time; bi-criteria; user equilibrium; Pareto optimum
Hrčak ID:
102067
URI
Publication date:
26.4.2013.
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