An Iterative Routing/Assignment Method for Anticipatory Real-Time Route Guidance 912815
Anticipatory route guidance in traffic networks is based on time-dependent fastest path calculation requiring forecasts of link travel time over a time horizon. These forecasts would be produced by a traffic assignment procedure, which must take into account the behavior of anticipatory vehicles seeking user-optimal route guidance. Thus a conceptual feedback loop occurs. We implement this feedback loop iteratively using simulation for the assignment phase. When the iteration terminates with a fixed-point assignment, user-optimality is achieved. We study the benefits accrued by individual anticipatory vehicles and the system as a whole, as a function of the proportion of vehicles which have anticipatory route guidance, i.e. the market penetration. We observe individual and system benefits at market penetrations up to 40% or higher.
Citation: Kaufman, D., Smith, R., and Wunderlich, K., "An Iterative Routing/Assignment Method for Anticipatory Real-Time Route Guidance," SAE Technical Paper 912815, 1991, https://doi.org/10.4271/912815. Download Citation
Author(s):
David E. Kaufman, Robert L. Smith, Karl E. Wunderlich
Affiliated:
Department of Industrial and Operations Engrg., University of Michigan Ann Arbor, MI
Pages: 8
Event:
Vehicle Navigation & Instrument Systems
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Vehicle Navigation and Information Systems Conference Proceedings-P-253
Related Topics:
Simulation and modeling
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