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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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Tu, H. (author), Li, H. (author), Van Lint, J.W.C. (author), Knoop, V.L. (author), Sun, L. (author)Travel time reliability is considered to be one of the key indicators of transport system performance. Knowledge of the mechanisms of travel time unreliability enables the derivation of explanatory models with which travel time reliability can be predicted and utilized in traffic management. Inspired by the macroscopic fundamental diagram (MFD),...conference paper 2013
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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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Goni Ros, B. (author), Knoop, V.L. (author), Van Arem, B. (author), Hoogendoorn, S.P. (author)Sags are freeway sections along which gradient changes significantly from downwards to upwards. Sags are often bottlenecks in freeway networks. Capacity decreases due to changes in car-following behavior. We present a microscopic traffic flow model that describes driving behavior and traffic flow dynamics at sags. The model includes a new...conference paper 2013
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Knoop, V.L. (author), De Jong, D.M. (author), Hoogendoorn, S.P. (author)The Macroscopic or Network Fundamental Diagram (NFD) describes the network performance as a function of the number of vehicles. Even if the network has the same roadway length, type of roads, number of intersections and traffic light setting strategy, the shape of the NFD changes. Therefore, the NFD needs to be calculated or simulated separately...conference paper 2013
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Rhasbudin Shah, S.M. (author), Knoop, V.L. (author), Hoogendoorn, S.P. (author)Incidents can affect the flow in non?incident direction due to rubbernecking. To this date, only homogeneous rubbernecking behaviour has been assessed. This study provides insights into inter?driver heterogeneity in rubbernecking behaviour while passing an incident site. We use empirical trajectory data obtained from a helicopter?mounted video...conference paper 2013
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- Knoop, V.L. (author), De Jong, D.M. (author), Hoogendoorn, S.P. (author) conference paper 2013
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- Knoop, V.L. (author), Hoogendoorn, S.P. (author) conference paper 2013
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Rhasbudin Shah, S.M. (author), Knoop, V.L. (author), Hoogendoorn, S.P. (author)Incidents can affect the flow in non?incident direction due to rubbernecking. To this date, only homogeneous rubbernecking behaviour has been assessed. This study provides insights into inter?driver heterogeneity in rubbernecking behaviour while passing an incident site. We use empirical trajectory data obtained from a helicopter?mounted video...conference paper 2013
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Knoop, V.L. (author), Hoogendoorn, S.P. (author)On a motorway, drivers make decisions on their speed. It has been shown that drivers change their acceleration only at specific times and not continuously. Lane changes are also made at discrete moments in time. This paper determines the moments when drivers change their acceleration and moments when they change lanes. Fitting longitudinal and...conference paper 2013
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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)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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- Knoop, V.L. (author), Hoogendoorn, S.P. (author), Van Lint, J.W.C. (author) conference paper 2013
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Knoop, V.L. (author), Hoogendoorn, S.P. (author), Van Lint, J.W.C. (author)Literature shows that – under specific conditions – the macroscopic fundamental diagram (MFD) describes a crisp relationship between the average flow (production) and the average density in an entire network. The limiting condition is that traffic conditions must be homogeneous over the whole network. Recent works describe hysteresis effects:...conference paper 2013
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- Goni Ros, B. (author), Knoop, V. (author), Van Arem, B. (author), Hoogendoorn, S.P. (author) conference paper 2012
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Knoop, V.L. (author), Van Lint, J.W.C. (author), Kester, L. (author), Passchier, I. (author), Vries, J. (author)Congestion is a major problem in large urbanised areas. Intelligent Transport Solutions aim to reduce this problem. Generally, traffic is monitored using sensors, this data is processed, a traffic state is estimated and a control measure is computed and implemented. The availability and quality of the data and the processing time of the...conference paper 2012
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- Goni Ros, B. (author), Knoop, V.L. (author), Van Arem, B. (author), Hoogendoorn, S.P. (author) conference paper 2012
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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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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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Knoop, V.L. (author), Hoogendoorn, S.P. (author), Shiomi, Y. (author), Buisson, C. (author)Since lane changes influence traffic operations, it is useful to know their frequency for various conditions. This paper studies the number of lane changes as function of the roadway characteristics. Two sites are studied, for which individual lane change data is available. The paper shows that the most constant measure is the lane change rate,...conference paper 2012