Searched for: author%3A%22Van+Zuylen%2C+H.J.%22
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Chen, Y. (author), Van Zuylen, H.J. (author)
Start taking a few most applied scenarios from a traffic control centre, analysing each component and structure of the whole, and evaluating the impact of each component and some typical combinations, based on available monitoring systems. Carrying on such initial research on best practices, we build a dynamic simulation model, including these...
conference paper 2014
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Li, J. (author), Van Zuylen, H.J. (author), Wei, G. (author)
Traffic volume and queue length are two important variables to identify traffic states in urban areas. Loop detectors are often used for monitoring traffic. A prominent weakness of loop detector data is the limited reliability due to equipment malfunctions and communication faults. This paper presents a method to identify the validity of loop...
conference paper 2014
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Li, J. (author), van Zuylen, H.J. (author), van der Horst, E. (author)
Driver behavior in China shows remarkable differences from that in western countries. In this study, six focus groups were organized to investigate Chinese drivers’ attitudes, expectations, intended actions, their preferences, and habits in different situations in urban areas. The outcomes show that there are important opportunities to improve...
conference paper 2014
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Van Zuylen, H.J. (author), Lu, S. (author), Li, J. (author), Yusen, C. (author)
Traffic management in cities with congestion is a big challenge with still unused opportunities. Intersection control is a corner stone but this should be done in an area-wide context. The dominant traffic process on urban roads is the traffic flow on the intersections. Spill back is a most important cause of malfunctioning networks. The...
conference paper 2014
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Snelder, M. (author), Immers, B. (author), Van Zuylen, H.J. (author)
In many road networks all over the world unexpectedly large delays occur as a result of unforeseen disturbances like incidents. Robustness measures can be taken to reduce these costs. In this paper we focus on network structure related robustness measures like adding spare capacity, creating parallel routes that are spread in a balanced way over...
conference paper 2012
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Snelder, M. (author), Immers, L.H. (author), Van Zuylen, H.J. (author)
There is a growing awareness that road networks, especially in major urban areas, are becoming more and more vulnerable to unforeseen disturbances like incidents because of the fact that the level of congestion keeps growing. Therefore, robustness measures have to be taken. In this paper the robust road network design problem is presented as...
conference paper 2010
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Knoop, V.L. (author), Bell, M.G.H. (author), Van Zuylen, H.J. (author)
conference paper 2010
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Van Hinsbergen, C.P.IJ. (author), Van Lint, H.W.C. (author), Hoogendoorn, S.P. (author), Van Zuylen, H.J. (author)
Recent research has revealed that there exist large inter-driver differences in car-following behavior such that different car-following models may apply to different drivers. This study applies Bayesian techniques to the calibration of car-following models, where prior distributions on each model parameter are converted to posterior...
conference paper 2010
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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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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), Snelder, M. (author), Van Zuylen, H.J. (author), Hoogendoorn, S.P. (author)
Literature proposes link-based indicators as predictors of the delay caused by a blockade on a particular link. This paper cross-compares these indicators and compares them with the result of a full simulation. The indicators predict different links to be vulnerable. Furthermore, the indicators do not provide a good indication of the delay of a...
conference paper 2010
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Knoop, V.L. (author), Snelder, M. (author), Van Zuylen, H.J. (author), Hoogendoorn, S.P. (author)
It is computationally expensive to find out where vulnerable parts in a network are. In literature a variety of methods were introduced that use relatively simple selection criteria (measured in real-life or calculated in a traffic simulator) to pre-determine the seriousness of the delays caused by the blocking of that link and thereafter...
conference paper 2010
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Knoop, V.L. (author), Van Zuylen, H.J. (author), Hoogendoorn, S.P. (author)
Much of the delays on road networks are caused by incidents. This is partially caused by blockage or closure of lanes, but also by the change of driving behaviour in the remaining lanes. This contribution analyses traffic flow conditions near an incident both microscopically and macroscopically. A theory is proposed to describe drivers’...
conference paper 2009
document
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 2009
document
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 2009
document
Knoop, V.L. (author), Hoogendoorn, S.P. (author), van Zuylen, H.J. (author)
Insight into traffic flow characteristics is often gained using local measurements. To determine macroscopic flow characteristics, time aggregation of microscopic information is required.<br/><br/>Usually, a data collection system stores values averaged over time. However, it is well known that a time mean average overestimates the influence of...
conference paper 2009
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Snelder, M. (author), Tavasszy, L.A. (author), Immers, L.H. (author), Van Zuylen, H.J. (author)
Transport networks in major urban areas are becoming more and more vulnerable to unforeseen disturbances in transport networks, like incidents. For the near future, we expect an increasing number of incidents with a large impact due to the overall increase of the traffic load. In this paper the hypothesis is tested that, if no measures are taken...
conference paper 2008
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Knoop, V.L. (author), Snelder, M. (author), Van Zuylen, H.J. (author)
Much of the delay in transport networks is caused by incidents. Many indicators are developed to determine vulnerable parts of a network without simulating the network flows with an incident on each of the links. This paper lists indicators proposed in literature and cross compares them. Their values for all links on three networks of different...
conference paper 2007
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Snelder, M. (author), Wagelmans, A.P.M. (author), Schrijver, J.M. (author), Van Zuylen, H.J. (author), Immers, L.H. (author)
The Dutch national road network has been developed over several decades. In the past, roads were constructed according to the then current spatial and transportation planning philosophies. Because the existing road network is a result of a long process of successive developments, the question can be asked whether this network is the most...
conference paper 2007
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Taale, H. (author), van Zuylen, H.J. (author)
conference paper 2002
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