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A piecewise-constant congestion taxing policy for repeated routing games
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0001-9940-5929
2015 (English)In: Transportation Research Part B: Methodological, ISSN 0191-2615, Vol. 78, 123-143 p.Article in journal (Refereed) Published
Abstract [en]

In this paper, we consider repeated routing games with piecewise-constant congestion taxing in which a central planner sets and announces the congestion taxes for fixed windows of time in advance. Specifically, congestion taxes are calculated using marginal congestion pricing based on the flow of the vehicles on each road prior to the beginning of the taxing window (and, hence, there is a time-varying delay in setting the congestion taxes). We motivate the piecewise-constant taxing policy by that users or drivers may dislike fast-changing prices and that they also prefer prior knowledge of the prices. We prove for this model that the multiplicative update rule and the discretized replicator dynamics converge to a socially optimal flow when using vanishing step sizes. Considering that the algorithm cannot adapt itself to a changing environment when using vanishing step sizes, we propose adopting constant step sizes in this case. Then, however, we can only prove the convergence of the dynamics to a neighborhood of the socially optimal flow (with the size of the neighbourhood being of the order of the selected step size). The results are illustrated on a nonlinear version of Pigou's famous routing game.

Place, publisher, year, edition, pages
2015. Vol. 78, 123-143 p.
Keyword [en]
Game theory, Control, Networks, Pricing, Traffic
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:kth:diva-165902DOI: 10.1016/j.trb.2015.04.003ISI: 000358091900008ScopusID: 2-s2.0-84929298448OAI: diva2:809073

QC 20150814

Available from: 2015-04-30 Created: 2015-04-30 Last updated: 2015-08-14Bibliographically approved

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Johansson, Karl
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Automatic ControlACCESS Linnaeus Centre
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