Ramp metering impact on urban corridor traffic: Field results

Haj-Salem, Habib; Papageorgiou, M.

doi:10.1016/0965-8564(94)00034-8

Cited by 60 publications

(34 citation statements)

References 1 publication

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“…But due to congestion avoidance or reduction, the freeway will be eventually enabled to accommodate a higher throughput, thus attracting drivers from urban paths and leading to an improved overall network performance. This positive impact of ramp metering on both the freeway and the adjacent road network traffic conditions was confirmed in a specially designed field evaluation in the Corridor Périphérique in Paris, see [88].…”

Section: Reactive Ramp Metering Strategiesmentioning

confidence: 95%

Review of road traffic control strategies

Diakaki¹,

Kotsialos²,

Wang³

2003

Proc. IEEE

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Section: Reactive Ramp Metering Strategiesmentioning

confidence: 95%

Review of road traffic control strategies

Diakaki¹,

Kotsialos²,

Wang³

2003

Proc. IEEE

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“…There are various ALINEA-based RM control algorithms, some that focus on flow and some that focus on occupancy. ALINEA was further developed by Haj-Salem and Papageorgiou (1995) as METALINE to consider the impact of RM on adjacent road segments. METALINE takes into consideration the traffic condition of the downstream bottleneck segment when calculating an appropriate RM rate.…”

Section: Ramp Metering (Rm)mentioning

confidence: 99%

DynaTAM: an online algorithm for performing simultaneously optimized proactive traffic control for freeways

et al. 2014

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Modern proactive control algorithms can perform real-time traffic state prediction and help determine control plans for active traffic control measures, such as ramp metering (RM) and variable speed limit (VSL). In this study, a control algorithm, DynaTAM (Dynamic Analysis Tool for Active Traffic Demand Management), is proposed for prediction-based, integrated optimization control. DynaTAM considers the correlations between the implemented control measures and determines the control plan for both RM and VSL at the same stage of optimization. The algorithm framework possesses a candidate control plan generator, which reduces the computational load of future optimizations and eliminates much of the uncertainty in the system performance. A field-data-based simulation study with different control scenarios is conducted to evaluate the performance of DynaTAM. The DynaTAM control algorithm is shown to not only effectively perform integrated and coordinated control using both RM and VSL, but also significantly improve the efficiency of traffic operations during peak hours.Résumé : Les algorithmes modernes de contrôle proactif peuvent réaliser des prévisions de l'état de la circulation en temps réel et aider à déterminer des plans de contrôle pour des mesures actives de contrôle de la circulation; ces algorithmes comprennent la régulation de bretelles d'accès (RM) et la limite de vitesse variable (VSL). Dans cette étude, un algorithme de contrôle, DynaTAM (Dynamic Analysis Tool for Active Traffic Demand Management), est proposé pour le contrôle de l'optimisation intégrée basé sur les prévisions. DynaTAM tient compte des corrélations entre les mesures de contrôles implantées et détermine le plan de contrôle pour la RM et la VSL à la même étape d'optimisation. Le cadre de l'algorithme présente un générateur de plans de contrôle admissibles, ce qui réduit la charge de calcul des optimisations futures et élimine une grande partie de l'incertitude quant au rendement du système. Une étude de simulation basée sur les données de terrain comportant plusieurs scénarios de contrôle, est réalisée pour évaluer le rendement de DynaTAM. L'algorithme de contrôle DynaTAM non seulement réalise un contrôle intégré et coordonnée de manière efficace en utilisant RM et VSL, mais améliore grandement l'efficacité des opérations de circulation durant les heures de pointe. [Traduit par la Rédaction] Mots-clés : régulation des bretelles d'accès, VSL, ATM, contrôle de circulation proactif, contrôle intégré et coordonné.

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“…Later, traffic dynamics was introduced into the formulation and traffic-responsive ramp control, such as occupancy-based control [3], began to emerge. More robust local traffic-responsive control algorithms based on feedback compensation have been proposed [4], [5] and tested in field operations [6]. Recently, a lot of integrated traffic responsive control algorithms have been proposed [7]- [9].…”

Section: Introductionmentioning

confidence: 99%

Research on ramp optimization metering strategy in urban expressway

Chen

Wang

2009

2009 IEEE International Conference on Automation and Logistics

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Taking Beijing urban expressway as research object, the control strategy with the measure of ramp metering is sought to deal with traffic congestion. The ramp metering methods, i.e. the local ramp optimization metering and the congestion dissipation control on urban expressway are put forward. The control strategy is not only to alleviate traffic congestion situation on mainline of urban expressway, but also to avoid the block of the surface streets owing to the serious queue. The examples denote that the methods are feasible and can offer reference for the theory of ramp control, and can be applied to engineering practices.

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Ramp metering impact on urban corridor traffic: Field results

Cited by 60 publications

References 1 publication

Review of road traffic control strategies

Review of road traffic control strategies

DynaTAM: an online algorithm for performing simultaneously optimized proactive traffic control for freeways

Research on ramp optimization metering strategy in urban expressway

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