A fuzzy logic-based variable speed limit controller

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dc.contributor.author Li, D en
dc.contributor.author Ranjitkar, Prakash en
dc.date.accessioned 2016-08-23T22:13:18Z en
dc.date.issued 2015-12 en
dc.identifier.citation Journal of Advanced Transportation, 2015, 49 (8), pp. 913 - 927 en
dc.identifier.issn 0197-6729 en
dc.identifier.uri http://hdl.handle.net/2292/30121 en
dc.description.abstract Variable speed limit (VSL) is an emerging intelligent transportation system (ITS) measure to improve operational and safety performance of motorway systems. Rule-based algorithms have been widely used in VSL applications because of their comprehensibility and ease of application. However, most of the algorithms proposed in the literature under this category are rather rough for the speed control. Pre-specified rules show some difficulties in appropriately activating/deactivating control actions in real time because of non-stationary and nonlinear nature of the traffic system. This paper proposes a fuzzy logic-based VSL control algorithm as an alternative to the existing VSL control algorithms. The proposed algorithm uses fuzzy sets instead of crisp sets to allow the separation of attribute domains into several overlapping intervals. The discretization using fuzzy sets can help to overcome the sensitivity problem caused by crisp discretization used in the existing VSL algorithms. The proposed algorithm is assessed for a test bed in Auckland using AIMSUN micro-simulator and verified against a well-known VSL algorithm. The simulation results show that the proposed algorithm outperforms the existing one to improve the efficiency performance of the motorway system with the critical bottleneck capacity increased by 6.42% and total travel time reduced by 12.39% when compared to a no-control scenario. en
dc.description.uri http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2042-3195 en
dc.publisher Wiley en
dc.relation.ispartofseries Journal of Advanced Transportation en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from http://www.sherpa.ac.uk/romeo/issn/0197-6729/ en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.title A fuzzy logic-based variable speed limit controller en
dc.type Journal Article en
dc.identifier.doi 10.1002/atr.1320 en
pubs.issue 8 en
pubs.begin-page 913 en
pubs.volume 49 en
dc.rights.holder Copyright: Wiley en
pubs.author-url http://onlinelibrary.wiley.com/doi/10.1002/atr.1320/full en
pubs.end-page 927 en
pubs.publication-status Published en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Article en
pubs.elements-id 492757 en
pubs.org-id Engineering en
pubs.org-id Civil and Environmental Eng en
dc.identifier.eissn 2042-3195 en
pubs.record-created-at-source-date 2016-08-24 en

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