Institutional Repository
Technical University of Crete
Technical University of Crete
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EL
| URI: | http://purl.tuc.gr/dl/dias/B26ABAEE-62EF-446B-A742-1FA87766196B | ||
| Year | 2005 | ||
| Type of Item | Conference Full Paper | ||
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| Bibliographic Citation | A. Kotsialos, M. Papageorgiou, "A hierarchical ramp metering control scheme for freeway networks," in 2005 American Control Conference, Proceedings of the, pp. 2257 - 2262, doi: 10.1109/ACC.2005.1470305 https://doi.org/10.1109/ACC.2005.1470305 | ||
| Appears in Collections |
A nonlinear model-predictive control approach to the problem of coordinated ramp metering is presented. The previously designed optimal control tool AMOC is used within the framework of a hierarchical control structure which consists of three control 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 (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 demonstrated that the proposed control scheme is efficient, fair and real-time feasible.
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