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Pecorari, N. (author), Rinaldi, M. (author), Hoogendoorn, S.P. (author)Our cities are growing at an unprecedented pace. The flexible use of metropolitan infrastructures is the key to maintaining, if not increasing, the current quality of life. The combined use of geo-fence technology and connected vehicles can be the tool to achieve this flexibility. In this paper, we take a first step in the evaluation of the...conference paper 2023
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Li, D. (author), De Schutter, B.H.K. (author)Data-driven control without using mathematical models is a promising research direction for urban traffic control due to the massive amounts of traffic data generated every day. This article proposes a novel distributed model-free adaptive predictive control (D-MFAPC) approach for multiregion urban traffic networks. More specifically, the...journal article 2022
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Dabiri, A. (author), Kulcsár, Balázs (author)Developed in this paper is a traffic flow model parametrised to describe abnormal traffic behaviour. In large traffic networks, the immediate detection and categorisation of traffic incidents/accidents is of capital importance to avoid breakdowns, further accidents. First, this claims for traffic flow models capable to capture abnormal...journal article 2022
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Sarisen, Dondu (author), Koukoravas, Vasilis (author), Farmani, Raziyeh (author), Kapelan, Z. (author), Memon, Fayyaz Ali (author)Intermittent water supply (IWS) is widely used around the world, and with the increase in population and predicted future water scarcity, IWS applications seem to continue. While most of the existing studies on water supply concentrate on continuous water supply (CWS), the research focused on the IWS is now becoming mainstream. Hydraulic...review 2022
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Nandakumar, Aswin Menon (author)Over the past few decades, transport authorities globally have resorted to transport models for testing policy interventions and simulating the results as part of the ex-ante analysis. Within the domains of traffic assignment, there is a greater focus on the dynamic representation of traffic, which has proved to be more accurate when compared to...master thesis 2021
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Wierbos, M.J. (author)This dissertation studies the dynamics of bicycle traffic flow. The research focuses on busy situations such as bicycle queues at intersections and congestion upstream of a bottleneck. The cycling movements are analyzed on the aggregated scale in terms of density, speed and flow. Furthermore, cyclists are included in a traffic flow model by...doctoral thesis 2021
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Aarts, Michiel (author)The traffic density of small aerial vehicles operating within urban environments is expected to increase significantly in the near future. This urban environment is highly constrained due to being limited to the low-altitude airspace directly above the existing road network. To increase understanding of the factors influencing the capacity of...master thesis 2021
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Keyvan-Ekbatani, Mehdi (author), Carlson, Rodrigo Castelan (author), Knoop, V.L. (author), Papageorgiou, Markos (author)Perimeter traffic flow control based on the macroscopic or network fundamental diagram provides the opportunity of operating an urban traffic network at its capacity. Because perimeter control operates on the basis of restricting inflow via reduced green times at selected entry (gated) links, vehicles on those links may be subject to queuing and...journal article 2021
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Loder, Allister (author), Bressan, Lea (author), Wierbos, M.J. (author), Becker, Henrik (author), Emmonds, Andy (author), Obee, Martin (author), Knoop, V.L. (author), Menendez, Monica (author), Axhausen, Kay W. (author)Interactions among different modes or vehicle classes in urban road networks affect the network performance in different and complex ways. Thus, an answer to the question of “how many cars are too many for a city?” is not trivial. However, multi-modal macroscopic fundamental diagrams (MFD) offer a novel opportunity to answer this question. So...journal article 2021
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Hol, Tijs (author)Resistive RAM, or RRAM, is one of the emerging non-volatile memory (NVM) technologies, which could be used in the near future to fill the gap in the memory hierarchy between dynamic RAM (DRAM) and Flash, or even completely replace Flash. RRAM operates faster than Flash, but is still non-volatile, which enables it to be used in a dense 3D NVM...master thesis 2020
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Wierbos, M.J. (author), Knoop, V.L. (author), Hanseler, F.S. (author), Hoogendoorn, S.P. (author)Bicycles are gaining popularity as a mode of transport resulting in a mixed bicycle–car traffic situation on urban roads. Cyclists however, are hardly included in traffic flow models which complicates the design of safe and congestion-free traffic situations. This work introduces class-specific speed functions based on two variables, being space...journal article 2020
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Yuan, Y. (author), Goni Ros, B. (author), Bui, Ha H. (author), Daamen, W. (author), Vu, Hai L. (author), Hoogendoorn, S.P. (author)Macroscopic pedestrian models are theoretically simpler than microscopic models, and they can potentially be solved faster while producing reasonable predictions of crowd dynamics. Therefore, they can be very useful for applications such as large-scale simulation, real-time state estimation and crowd management. However, the numerical methods...journal article 2020
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van Loon, A. (author), Noble, P. (author), de Man, D. (author), Alfeld, M.W.E.M. (author), Dore-Callewaert, T.W.J. (author), van der Snickt, G.R. (author), Janssens, K.E.J. (author), Dik, J. (author)As part of the NWO Science4Arts REVISRembrandt project (2012–2018), novel chemical imaging techniques were developed and applied to the study of Rembrandt’s late experimental painting technique (1651–1669). One of the unique features in his late paintings is his abundant use of smalt: a blue cobalt glass pigment that he often combined with...journal article 2020
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Yuan, K. (author), Knoop, V.L. (author), Zwaal, B.A. (author), van Lint, J.W.C. (author)With the renewed interest in the Macroscopic Fundamental Diagram (MFD) in the last decade, studies on network-level urban traffic control have increased in popularity. A popular urban traffic control approach is perimeter control, in which vehicle accumulation is kept below some critical accumulation value. An alternative control strategy is to...conference paper 2020
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Nagalur Subraveti, H.H.S. (author), Knoop, V.L. (author), van Arem, B. (author)For better and more efficient motorway traffic control strategies on a lane level, accurate modelling and prediction of traffic conditions is essential. Existing real-time traffic state estimation methods aggregate traffic across lanes. Hence, there is a need for lane-specific traffic flow models. The majority of the existing macroscopic lane...conference paper 2020
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Daamen, W. (author), van Binsbergen, A.J. (author), van Arem, B. (author), Hoogendoorn, S.P. (author)The Urban Mobility Observatory (UMO) will gather, store, and disseminate empirical multi-modal traffic, transport and mobility data, using a well-balanced set of innovative data collection methods. It will make these comprehensive data available for scientific research to develop and test new theories and models to better understand, predict and...conference paper 2020
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Vandivere, Abbie (author), van Loon, A. (author), Dore-Callewaert, T.W.J. (author), Haswell, Ralph (author), Proaño Gaibor, Art Ness (author), van Keulen, Henk (author), Leonhardt, Emilien (author), Dik, J. (author)The background of Vermeer’s Girl with a Pearl Earring (c. 1665, Mauritshuis) has, until recently, been interpreted as a flat dark space. The painting was examined in 2018 as part of the research project The Girl in the Spotlight using a combination of micro- and macro-scale analytical techniques. The stratigraphy of the background was...journal article 2019
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Nagalur Subraveti, H.H.S. (author), Knoop, V.L. (author), van Arem, B. (author)Unbalanced lane usage on motorways might lead to the reduction in capacity<br/>of the motorway. Lane-level traffic management present new opportunities<br/>to balance the lane-flow distribution and help reduce congestion.<br/>In order to come up with efficient traffic management strategies on a<br/>lane-level, there is a need for accurate lane...journal article 2019
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Knoop, V.L. (author), van Erp, P.B.C. (author), Leclercq, Ludovic (author), Hoogendoorn, S.P. (author)<br/>The Macroscopic Fundamental Diagram (MFD) describes the relation between accumulation and speed in a zone. While theoretically expected, empirical validations have been done with limited numbers of floating car (e.g., taxi) data, and loop detectors. This paper will verify existence, shape and crispness of the MFD using Floating Car Data ...conference paper 2019
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Keyvan-Ekbatania, Mehdi (author), Gaob, Xueyu (Shirley) (author), Gayahb, Vikash V. (author), Knoop, V.L. (author)Empirical and research evidence suggests that traffic-responsive signal control strategies are generally not as efficient in over-saturated traffic conditions characterized by queue spillbacks. Recent studies on (MFD/NFD) have identified a destabilizing gridlock process that arises in congested networks which precludes efficient operation. The...journal article 2019