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Calvert, S.C. (author), van den Burg, Bastiaan D. (author), Taale, Henk (author)Route guidance in traffic management aims to improve traffic network performance aligned with a system optimum. However, service providers commonly offer user optimum travel advice that can negatively impact centralized route guidance. This paper quantifies and demonstrates the impact of different policy strategies for a centralized route...conference paper 2023
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Li, G. (author), Jiao, Y. (author), Knoop, V.L. (author), Calvert, S.C. (author), van Lint, J.W.C. (author)Car-Following (CF), as a fundamental driving behaviour, has significant influences on the safety and efficiency of traffic flow. Investigating how human drivers react differently when following autonomous vs. human-driven vehicles (HV) is thus critical for mixed traffic flow. Research in this field can be expedited with trajectory datasets...conference paper 2023
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Mathiesen, Frederik Baymler (author), Romao, Licio (author), Calvert, S.C. (author), Abate, Alessandro (author), Laurenti, L. (author)This paper proposes a new framework to compute finite-horizon safety guarantees for discrete-time piece-wise affine systems with stochastic noise of unknown distributions. The approach is based on a novel approach to synthesise a stochastic barrier function (SBF) from noisy data and rely on the scenario optimization theory. In particular, we...conference paper 2023
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Soni, S. (author), Calvert, S.C. (author)New smart traffic signal control algorithms are capable of predicting the traffic signal state (red, green, or amber) changes, which can be provided to users to achieve more efficient traffic flow. However, these predictions pose an uncertain impact on the traffic flow and safety depending upon the quality of prediction. The information...conference paper 2020
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Heikoop, D.D. (author), Calvert, S.C. (author), Mecacci, G. (author), Hagenzieker, Marjan (author)As automated vehicles become increasingly common on the road, the call for an appropriate preparation for its drivers is becoming more urgent. Expert opinions and insights have been acquired via a focus group discussion with eleven Dutch driving examiners to assist in inventorying what types of preparations are needed. The concept of meaningful...conference paper 2020
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Heikoop, D.D. (author), Hagenzieker, Marjan (author), Mecacci, G. (author), Santoni De Sio, F. (author), Calvert, S.C. (author), van Arem, B. (author)Human Factors issues with automated driving systems (ADS) are becoming more apparent with the increasing prevalence of automated vehicles on the public roads. As automated driving demands increased performance of supervisory skills of the driver, rather than vehicle handling skills, a mismatch occurs between the demand and supply of the drivers’...conference paper 2018
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Calvert, S.C. (author), Mecacci, G. (author), Heikoop, D.D. (author), Santoni De Sio, F. (author)Truck platooning is a form of vehicle automation and cooperation that is leading the way for cooperative and automated vehicle implementation. However, much is still unknown about the effects and potential dangers of many situations in regard to cooperative control of these platoons. In this contribution, we discuss many of the challenges in...conference paper 2018
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van Lint, J.W.C. (author), Calvert, S.C. (author), Schakel, W.J. (author), Wang, M. (author), Verbraeck, A. (author)It is remarkable that drivers (on average) can safely navigate through dense traffic at high speeds—conditions in which the time headways between vehicles are in the same order of magnitude as human reaction times. One explanation for this is the ability of drivers to anticipate on the traffic conditions in their surroundings. In this paper,...conference paper 2018
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Nguyen, T.T. (author), Calvert, S.C. (author), van Lint, J.W.C. (author)Traffic state estimation is an important task that has attracted a lot of research effort in recent decades. The main goal of traffic state estimation is to turn measured data, which is normally noisy and incomplete, into meaningful information for further investigation, either offline or online (e.g. traffic management and control).conference paper 2017
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Calvert, S.C. (author), Snelder, M. (author), Taale, H. (author), Van Wageningen-Kessels, F.L.M. (author), Hoogendoorn, S.P. (author)In this contribution a model-based analysis of the application of bounded acceleration in traffic flow is considered as a cause for the capacity drop. This is performed in a Lagrangian formulation of the kinematic wave model with general vehicle specific characteristics. Unconstrained overtaking is presumed, which allows a demonstration to be...conference paper 2015
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- Calvert, S.C. (author), Snelder, M (author), Bakri, T (author), Heijligers, B (author), Knoop, V.L. (author) conference paper 2015
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Calvert, S.C. (author)Het is al langer bekend dat onzekerheid een belangrijke rol speelt in het verkeer net als in de wereld om ons heen. Dit geldt zowel op een strategische lange termijn basis als op de operationele basis in verkeersdynamiek. Er geldt echter een onbekendheid en misschien zelfs een onwil om voldoende rekening te houden met onzekerheden. Een...conference paper 2014
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Calvert, S.C. (author), Taale, H. (author), Hoogendoorn, S.P. (author)In this contribution the Core Probability Framework (CPF) is introduced with the application of the Discrete-Element Core Probability Model (DE-CPM) as a new DNL for dynamic macroscopic modelling of stochastic traffic flow. The model is demonstrated for validation in a test case and for computational efficiency on two simple networks. The CPF...conference paper 2014
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Van Stralen, W. (author), Calvert, S.C. (author), Molin, E.J.E. (author)Weather conditions are widely acknowledged to contribute to the occurrence of congestion on motorway traffic by influencing both traffic supply and traffic demand. However, to the best of our knowledge this is the first paper that explicitly integrates supply and demand effects in predicting the influence of adverse weather conditions on...conference paper 2014
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Mouter, N. (author), Holleman, M. (author), Calvert, S.C. (author), Annema, J.A. (author)Based on a cognitive psychological theory, this paper aims to improve the communication of uncertainty in Cost-Benefit Analysis. The theory is based on different cognitive-personality and cognitive-social psychological constructs that may help explain individual differences in the processing of uncertain information used for decision making. The...conference paper 2013
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Calvert, S.C. (author), Van Stralen, W. (author), Molin, E.J.E. (author)Kwantificatie van de invloed van regen op de verkeerdoorstroming Het is bekend dat het weer invloed heeft op het verkeer op snelwegen, en in het bijzonder filevorming. Op de eerste plaats wordt de wegcapaciteit tijdelijk beïnvloed door een verandering in rijgedrag van bestuurders. Ten tweede beïnvloed het weer ook de verkeersvraag. Vertragingen...conference paper 2013
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- Calvert, S.C. (author), Taale, Henk (author), Snelder, M. (author), Hoogendoorn, S.P. (author) conference paper 2013
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Calvert, S.C. (author), Taale, H. (author)Verkeersmodellen spelen een belangrijke rol als nuttige instrumenten bij plan- en evaluatiestudies en het begeleiden van processen rondom onbekende of onzekere verkeerssituaties. Recentelijke ontwikkelingen in verkeersmodellering zijn gaande op het gebied van het modelleren van variatie in verkeersomstandigheden. Dergelijke modellen worden vaak...conference paper 2012
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Calvert, S.C. (author), Taale, H. (author), Snelder, M. (author), Hoogendoorn, S.P. (author)In the past decade an increase in research regarding stochasticity and probability in traffic modelling has occurred. The realisation has grown that simple presumptions and basic stochastic elements are insufficient to give accurate modelling results in many cases. This paper puts forward a strong argument for the further development and...conference paper 2012