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document
Hoogendoorn, C.J. (author), Van der Meer, T.H. (author)
book 1991
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Hoogendoorn, S.P. (author), Knoop, V.L. (author)
When do traffi c jams emerge? Can we predict, given certain demand levels, when queuing will occur, how long the queues will be, how they will propagate in space and time and how long it will take for the congestion to resolve? Why does an overloaded traffic network underperform? This chapter gives a basic introduction to traffic flow theory...
book chapter 2012
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Knoop, V.L. (author), Hoogendoorn, S.P. (author)
When do traffic jams emerge? Can we predict, given certain demand levels, when queuing will occur, how long the queues will be, how they will propagate in space and time, and how long it takes for the congestion to resolve? Why does an overloaded traffic network underperform? This chapter gives a basic introduction in traffic flow theory which...
book chapter 2023
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Knoop, V.L. (author), Hoogendoorn, S.P. (author)
Due to increasing exchange of data between measurement sites, the area over which traffic control is applied increases. This leads to three new challenges: (1) working with the large quantities of data (transmit, store), (2) estimating the traffic state, (3) controlling a large area with many controllers (and hence large solution space). This...
conference paper 2013
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Van Wageningen-Kessels, F.L.M. (author), Daamen, W. (author), Hoogendoorn, S.P. (author)
conference paper 2014
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Goni Ros, B. (author), Knoop, V.L. (author), Schakel, W.J. (author), Van Arem, B. (author), Hoogendoorn, S.P. (author)
conference paper 2013
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Knoop, V.L. (author), Hoogendoorn, S.P. (author), Van Zuylen, H.J. (author)
The duration of incidents is a stochastic variable with a variation spread. This chapter analyzes the consequences of this stochastic nature of the duration in terms of delay. It uses shockwave theory to describe traffic states. As opposed to a point queue model, the head and the tail of the queue are separately modeled and in this way the...
conference paper 2010
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Huibregtse, O.L. (author), Hoogendoorn, S.P. (author), Pel, A.J. (author), Bliemer, M.C.J. (author)
A method is described to develop a set of optimal instructions to evacuate by car the population of a region threatened by a hazard. By giving these instructions to the evacuees, traffic conditions and therefore the evacuation efficiency can be optimized. The instructions, containing a departure time, a destination, and a route, are created...
conference paper 2010
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Knoop, V.L. (author), Hoogendoorn, S.P. (author), Van Zuylen, H.J. (author)
The delay caused by an incident depends on many variables. This paper introduces an analytical expression for the delay, describing the location and length of the queue by shockwave theory. As long as the congestion remains on the same link, delay is proportional to the square of the duration, even in case the outflow is reduced by a junction...
conference paper 2010
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Knoop, V.L. (author), Hoogendoorn, S.P. (author)
Verkeersmodellen worden gebruikt om de verkeerssituatie te voorspellen. Daarbij zijn twee dimensies van belang: het detailniveau van het model en de beschikbare rekentijd. Dit artikel analyseert de beide dimensies en de argumenten aan om voor een bepaald niveau te kiezen. Het artikel geeft voorbeelden van beschikbare modellen, maar gaat bovenal...
conference paper 2013
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van Beinum, A.S. (author), Farah, H. (author), Wegman, F.C.M. (author), Hoogendoorn, S.P. (author)
Turbulence in traffic is a commonly known phenomenon, but the exact characteristics of this phenomenon are not yet clear. It reflects individual changes in speed, headways, and lanes in the traffic stream. The currently used freeway design guidelines prescribe different measures for handling turbulence, such as sufficient ramp spacing, and...
conference paper 2016
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Goni Ros, B. (author), Knoop, V.L. (author), Van Arem, B. (author), Hoogendoorn, S.P. (author)
We present a new control strategy that aims to reduce total delay at sags. The strategy is based on the concept of mainstream traffic flow control. The traffic density at the bottleneck area is regulated in order to keep it slightly below the critical density, hence preventing traffic from breaking down while maximizing outflow. Density is...
conference paper 2014
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Knoop, V.L. (author), Hoogendoorn, S.P. (author), van Arem, B. (author)
conference paper 2010
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van Dijk, T.A.G.P. (author), Kleuskens, M.H.P. (author), Dorst, L.L. (author), Van der Tak, C. (author), Doornenbal, P.J. (author), Van der Spek, A.J.F. (author), Hoogendoorn, R.M. (author), Rodriguez Aguilera, D. (author), Menninga, P.J. (author), Noorlandt, R.P. (author)
Sedimentary coasts and shallow-sea beds may be dynamic. The large-scaled spatial variation in these dynamics and the smaller-scaled behaviour of individual marine bedforms are largely unknown. Sea-bed dynamics are relevant for the safety of shipping, and therefore for monitoring strategies, and for offshore engineering projects and...
conference paper 2012
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Campanella, M.C. (author), Daamen, W. (author), Hoogendoorn, S.P. (author)
The application of walker models to simulate real situations require accuracy in several traffic situations. One strategy to obtain a generic model is to calibrate the parameters in several situations using multiple-objective functions in the optimization process. In this paper, we propose a general methodology for calibration of walker models....
conference paper 2012
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Doirado, E. (author), Van den Berg, M. (author), Van Lint, J.W.C. (author), Hoogendoorn, S.P. (author), Prendinger, H. (author)
Disaster evacuation studies are important but difficult or impossible to conduct in the real world. Evacuation simulation in a virtual world can be an important tool to obtain data on the escape and choice behavior of people. However, to obtain accurate “realistic” data, the engagement of participants is a key challenge. Therefore, we describe...
conference paper 2012
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Yuan, Y. (author), Pel, A.J. (author), Hoogendoorn, S.P. (author)
Earlier studies have shown how driving behaviour during emergency evacuation is different from that under “normal” conditions. At the same time, most evacuation studies (where the driving performance is explicitly accounted for) were conducted under the assumption of a fully activated emergency environment. However, the transition phase in...
conference paper 2014
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Knoop, V.L. (author), Hoogendoorn, S.P. (author), Van Lint, J.W.C. (author)
An excess number of vehicles in a traffic network will reduce traffic performance. This reduction can be avoided by traffic management. In particular, traffic can be routed such that the bottlenecks are not oversaturated. The macroscopic fundamental diagram provides the relation between the number of vehicles and the network performance. One can...
conference paper 2012
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Bellsolà Olba, X. (author), Daamen, W. (author), Vellinga, T. (author), Hoogendoorn, S.P. (author)
Port capacity from a traffic perspective has yet to be defined, but its measurement should allow the assessment of port infrastructures and the identification of their main constraints or bottlenecks. In this paper, we will present a review of link and network capacity definitions for different domains and new definitions for ports are...
conference paper 2014
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Knoop, V.L. (author), Hoogendoorn, S.P. (author), Shiomi, Y. (author), Buisson, C. (author)
Lane changes are an important aspect of freeway flow. Most lane change models are microscopic, describing whether individual vehicles/drives will change lanes, and hence are calibrated microscopically. Macroscopic validation often is restricted to the distribution of vehicles across lanes. To the best of our knowledge, no systematic analysis has...
conference paper 2012
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