Searched for: author%3A%22Hegyi%2C+A.%22
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Dabiri, A. (author), Hegyi, A. (author), Hoogendoorn, S.P. (author)
The literature on green mobility and eco-driving in urban areas has burgeoned in recent years, with special attention to using infrastructure to vehicle (I2V) communications to obtain optimal speed trajectory which minimize the economic and environmental costs. This article shares the concept with these studies but turns the spotlight on...
journal article 2022
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Han, Yu (author), Hegyi, A. (author), Zhang, Le (author), He, Zhengbing (author), Chung, Edward (author), Liu, Pan (author)
Conventional reinforcement learning (RL) models of variable speed limit (VSL) control systems (and traffic control systems in general) cannot be trained in real traffic process because new control actions are usually explored randomly, which may result in high costs (delays) due to exploration and learning. For this reason, existing RL-based...
journal article 2022
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Verkaik-Poelman, M.C. (author), Hegyi, A. (author), Verbraeck, A. (author), van Lint, J.W.C. (author)
Signalized traffic control is important in traffic management to reduce congestion in urban areas. With recent technological developments, more data have become available to the controllers and advanced state estimation and prediction methods have been developed that use these data. To fully benefit from these techniques in the design of...
journal article 2020
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van de Weg, Goof Sterk (author), Hegyi, A. (author), Hoogendoorn, S.P. (author), De Schutter, B.H.K. (author)
Freeway congestion can reduce the freeway throughput due to the capacity drop or due to blocking caused by spillback to upstream ramps. Research has shown that congestion can be reduced by the application of ramp metering and variable speed limits. Model predictive control is a promising strategy for the optimization of the ramp metering...
journal article 2019
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Mahajan, N. (author), Hegyi, A. (author), Hoogendoorn, S.P. (author), van Arem, B. (author)
Intelligent vehicle technologies are opening new possibilities for decentralized vehicle routing systems, suitable for regulating large traffic networks, and at the same time, capable of providing customized advice to individual vehicles. In this study, we perform a rigorous simulation-based analysis of an in-vehicle routing strategy that...
journal article 2019
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van de Weg, Goof Sterk (author), Vu, Hai L. (author), Hegyi, A. (author), Hoogendoorn, S.P. (author)
In this paper, we develop a hierarchical approach to optimize the signal timings in an urban traffic network taking into account the different dynamics in all traffic regimes. The proposed hierarchical control framework consists of two layers. The first layer--the network coordination layer--uses a model predictive control strategy based on a...
journal article 2018
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Mahajan, N. (author), Hegyi, A. (author), Hoogendoorn, S.P. (author), van Arem, B. (author)
conference paper 2018
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Han, Y. (author), Hegyi, A. (author), Yuan, Y. (author), Roncoli, Claudio (author), Hoogendoorn, S.P. (author)
This paper extends an existing linear quadratic model predictive control (LQMPC) approach to multi-destination traffic networks, where the correct origin-destination (OD) relations are preserved. In the literature, the LQMPC approach has been presented for efficient routing and intersection signal control. The optimization problem in the...
journal article 2018
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Han, Y. (author), Hegyi, A. (author), Yuan, Y. (author), Hoogendoorn, S.P. (author), Papageorgiou, Markos (author), Roncoli, Claudio (author)
In this paper we develop a fast model predictive control (MPC) approach for variable speed limit coordination to resolve freeway jam waves. Existing MPC approaches that are based on the second-order traffic flow models suffer from high computation load due to the non-linear and non-convex optimization formulation. In recent years, simplified...
journal article 2017
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Plana, J. (author), Soriguera, F. (author), Hegyi, A. (author)
This paper describes the effects of dynamic speed limit (DSL) control on a three-lane section on the A13 Freeway in Rotterdam, Netherlands. The main objective was to contrast the latest empirical findings from an experiment conducted in Barcelona, Spain, in which the main line metering capability (i.e., gating, or main line flow restriction) was...
journal article 2016
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Han, Y. (author), Yuan, Y. (author), Hegyi, A. (author), Hoogendoorn, S.P. (author)
This paper proposes an extension of the discrete Lighthill–Whitham–Richards model of the cell transmission model type to reproduce capacity drop and the propagation of jam waves. Recent studies have tried to incorporate the capacity drop into discrete first-order traffic flow models for traffic optimization purposes. It was found that the inflow...
journal article 2016
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Van de Weg, G.S. (author), Keyvan Ekbatani, M. (author), Hegyi, A. (author), Hoogendoorn, S.P. (author)
Developing practicable and efficient real-time signal control strategies for urban road networks is a major challenge with significant scientific and practical relevance. For the sake of practical feasibility, many urban traffic control strategies are based on simplified models. In this way, a trade-off can be made between controller accuracy,...
conference paper 2016
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Van de Weg, G.S. (author), Hegyi, A. (author), Hoogendoorn, S.P. (author)
The development of control strategies for traffic lights, ramp metering installations, and variable speed limits to improve the throughput of road traffic networks can contribute to a more efficient use of road networks. In this project, a hierarchical controller will be developed for the improvement of the throughput of a road traffic network....
conference paper 2014
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Hegyi, A. (author), Van de Weg, G.S. (author)
journal article 2014
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Hegyi, A. (author), Van de Weg, G.S. (author)
Er is momenteel veel aandacht voor de files die in de volksmond spookfiles heten. Maar komen ze echt ‘uit het niets’, zoals het lijkt als je er in- en even later weer uitrijdt? In deze tutorial van NM Magazine leggen de onderzoekers Andreas Hegyi en Goof van de Weg van de TU Delft uit hoe dit type files ontstaat en vooral: wat er aan te doen is.
journal article 2014
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Netten, B. (author), Hegyi, A. (author), Wang, M. (author), Schakel, W.J. (author), Yuan, Y. (author), Schreiter, T. (author), Van Arem, B. (author), Van Leeuwen, C. (author), Alkim, T. (author)
conference paper 2013
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Vreeswijk, J.D. (author), Landman, R.L. (author), Van Berkum, E.C. (author), Hegyi, A. (author), Hoogendoorn, S.P. (author), Van Arem, B. (author)
When applying dynamic route guidance to improve the network performance, it is important to balance the interests of the road authorities and the road users. In this paper we will illustrate how bounded rationality and indifference bands can be taken into account in dynamic route guidance to improve the network performance while respecting the...
conference paper 2012
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Knoop, V.L. (author), Hegyi, A. (author)
Met ingang van deze uitgave zal NM Magazine een aantal tutorials over (dynamisch) verkeersmanagement opnemen. Ons doel? Een groter publiek kennis laten maken met de principes van en de wetenschappelijke basis onder verkeersmanagement. In deze eerste bijdrage maken we kennis met de verkeersstroomtheorie. Dr. Victor Knoop en dr. ir. Andreas Hegyi...
journal article 2012
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Landman, R.L. (author), Hegyi, A. (author), Hoogendoorn, S.P. (author)
Service level control is a promising strategy to realize policy objectives within road networks like improving network production while taking road user interests, livability and safety into account. In this contribution a service level-oriented route guidance control approach is presented that is able to control service levels of routes on a...
conference paper 2012
document
Landman, R.L. (author), Hegyi, A. (author), Hoogendoorn, S.P. (author)
Research in the field of evacuation management puts a strong focus on the development of optimal evacuation and control strategies. However, in operational evacuation management the means to monitor, manage, evaluate and control are limited. The authorities nevertheless have a strong need to understand the system, in order to properly guide...
conference paper 2012
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