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Local and optimal coordinated ramp metering for freeway networks.

Kotsialos, A. and Papageorgiou, M. and Middelham, F. (2005) 'Local and optimal coordinated ramp metering for freeway networks.', Journal of intelligent transportation systems : technology, planning and operations., 9 (4). pp. 187-203.

Abstract

In this article a nonlinear model predictive control approach to the problem of coordinated ramp metering is presented. The previously designed optimal control tool Advanced Motorway Optimal Control (AMOC) is used within the framework of a hierarchical control structure which consists of three basic layers: the estimation/prediction layer, the optimization layer, and the direct control layer. More emphasis is given to the last two layers where the control actions on a network-wide and on a local level, respectively, are decided. The hierarchical control strategy combines AMOC’s coordinated ramp metering control with local feedback Asservissement LIn´eaire d’Entr´e Autorouti`ere (ALINEA) control in an efficient way. Simulation investigations for the Amsterdam ring-road are reported whereby the results are compared with those obtained by applying ALINEA as a stand-alone strategy. It is shown that the proposed control scheme is efficient, fair, and real-time feasible.

Item Type:Article
Keywords:Intelligent transportation systems, Ramp metering, Traffic management, Traffic control, Freeways.
Full text:Full text not available from this repository.
Publisher Web site:http://dx.doi.org/10.1080/15472450500237296
Record Created:26 Feb 2008
Last Modified:27 Nov 2009 10:59

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