Bicriterion Traffic Assignment: Basic Theory and Elementary Algorithms

Dial, Robert B.
May 1996
Transportation Science;May96, Vol. 30 Issue 2, p93
Academic Journal
This paper describes a bicriterion equilibrium traffic assignment model that accurately fore- casts path chokes and consequent total arc flows for a stochastically diverse set of trips. Called T2, its develops around a linear generalized cost model, which generalizes classical traffic assignment by relaxing the value-of-time parameter from a constant to a random variable with an arbitrary probability distribution. For the case where arc time and/or cost are flow dependent, this paper formulates conditions and algorithms [or stochastic bicriterion user-optimal equilibrium arc flows, which reflect every trip's exclusive use of a path that minimizes its particular perception of generalized cost.


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