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Coutinho, Felipe Mariz (author), van Oort, N. (author), Christoforou, Zoi (author), Alonso González, M.J. (author), Cats, O. (author), Hoogendoorn, S.P. (author)The diffusion of the smartphone and the urban sprawl is pushing both private and public actors to revisit the concept of the demand-responsive transit (DRT). Mokumflex is a DRT pilot program that replaced the regular bus service in low-density areas of Amsterdam, the Netherlands, for 12 months. The close collaboration with the private enterprise...conference paper 2020
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Gkiotsalitis, Konstantinos (author), Eikenbroek, Oskar A.L. (author), Cats, O. (author)Travel time and demand disturbances lead to unreliable bus operations and missed passenger transfers. This study formulates the multi-line synchronization problem as a robust min(i)max problem that considers the fluctuations of the travel and dwell times of bus trips. Given the infeasibility of the multi-line synchronization problem in...journal article 2020
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Gkiotsalitis, Konstantinos (author), Cats, O. (author)The COVID-19 pandemic crisis has greatly impacted public transport ridership and service provision across the world. As many countries start to navigate their return to normality, new public transport planning requirements are devised. These measures imply a major reduction in service capacity compared to the pre-COVID-19 era. At the time of...review 2020
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Gkiotsalitis, Konstantinos (author), Cats, O. (author)This study proposes an exact model for timetable recovery after disturbances in the context of high-frequency public transport services. The objective of our model is the minimization of the deviation between the actual headway and the respective planned value. The resulting mathematical program for the rescheduling problem is nonlinear and...journal article 2020
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Tirachini, Alejandro (author), Cats, O. (author)The COVID-19 pandemic poses a great challenge for contemporary public transportation worldwide, resulting from an unprecedented decline in demand and revenue. In this paper, we synthesize the state-of-the-art, up to early June 2020, on key developments regarding public transportation and the COVID-19 pandemic, including the different...journal article 2020
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Krishnakumari, P.K. (author), Cats, O. (author), van Lint, J.W.C. (author)The biggest challenge of analysing network traffic dynamics of large-scale networks is its complexity and pattern interpretability. In this work, we present a new computationally efficient method, inspired by human vision, to reduce the dimensions of a large-scale network and describe the traffic conditions with a compact, scalable and...journal article 2020
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Wang, Z. (author), Luo, D. (author), Cats, O. (author), Verma, T. (author)Hierarchy is regarded as a natural phenomenon of public transport networks (PTN). The imbalanced distribution of passenger flow result in a hierarchical structure of PTN and it is also related to the development of technology and the introduction of new modes. However, there is still a lack of knowledge on how to identify the hierarchical...conference paper 2020
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Peftitsi, Soumela (author), Jenelius, Erik (author), Cats, O. (author)We propose a methodology based on multiple automated data sources for evaluating the effects of station layout, arriving traveler flows, and platform and on-board crowding on the distribution of boarding passengers among individual cars of metro trains. The methodology is applied to a case study for a sequence of stations in the Stockholm...journal article 2020
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Cats, O. (author), Krishnakumari, P.K. (author)In large-scale urban agglomerations, heavy rail in the form of metro and commuter train serves as the backbone of the metropolitan public transport network. The objective of this paper is to investigate whether networks with strikingly different structure and development pattern exhibit different robustness properties in the event of random...journal article 2020
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Narayan S., Jishnu (author), Cats, O. (author), van Oort, N. (author), Hoogendoorn, S.P. (author)The recent technological innovations in various ICT platforms have given rise to innovative mobility solutions. Such systems could potentially address some of the inherent shortcomings of a line/schedule based public transport system. Previous studies either assumed that flexible on-demand services are used as an exclusive door-to-door...journal article 2020
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Alonso González, M.J. (author), van Oort, N. (author), Cats, O. (author), Hoogendoorn-Lanser, S. (author), Hoogendoorn, S.P. (author)The uptake of on-demand services is increasing rapidly all over the world. However, the market share of their pooled version (ridesharing, e.g., UberPOOL or LyftLine) is still low, despite its potential in addressing the mobility challenges that dense urban cities are facing. In this research, we analyse user preferences towards pooled on-demand...journal article 2020
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Yap, M.D. (author), Cats, O. (author)Disruptions in public transport can have major implications for passengers and service providers. Our study objective is to develop a generic approach to predict how often different disruption types occur at different stations of a public transport network, and to predict the impact related to these disruptions as measured in terms of...journal article 2020
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Ashkrof, P. (author), Correia, Gonçalo (author), Cats, O. (author), van Arem, B. (author)Ride-sourcing has recently been at the centre of attention as the most disruptive mode of transport associated with the so-called shared mobility era. Drivers, riders, the platform, policymakers, and the general public are considered as the main stakeholders of the system. While ride-sourcing platforms have been growing, so did the heightened...journal article 2020
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Kucharski, R.M. (author), Cats, O. (author)The premise of ride-sharing is that service providers can offer a discount, so that travellers are compensated for prolonged travel times and induced discomfort, while still increasing their revenues. While recently proposed real-time solutions support online operations, algorithms to perform strategic system-wide evaluations are crucially...journal article 2020
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Krishnakumari, P.K. (author), Cats, O. (author), van Lint, J.W.C. (author)Smart card data enables the estimation of passenger delays throughout the public transit network. However, this delay is measured per passenger trajectory and not per network component. The implication is that it is currently not possible to identify the contribution of individual system components – stations and track segments – to overall...journal article 2020
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Cats, O. (author), West, Jens (author)The distribution of passenger demand over the transit network is forecasted using transit assignment models which conventionally assume that passenger loads satisfy network equilibrium conditions. The approach taken in this study is to model transit path choice as a within-day dynamic process influenced by network state variation and real...journal article 2020
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Winter, M.K.E. (author), Cats, O. (author), Martens, Karel (author), van Arem, B. (author)With shared mobility services becoming increasingly popular and vehicle automation technology advancing fast, there is an increasing interest in analysing the impacts of large-scale deployment of shared automated vehicles. In this study, a large fleet of shared automated vehicles providing private rides to passengers is introduced to an agent...journal article 2020
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Leffler, David (author), Burghout, Wilco (author), Cats, O. (author), Jenelius, Erik (author)This paper presents a comparative analysis of demand-responsive and fixed-schedule, fixed route operations for a simplified station-based feeder to mass transit scenario. Traffic dynamics, demand-responsive fleet coordination, and the behaviour of individual transit users are represented using a public transit simulation framework. Each...journal article 2020
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Ishaq, Robert (author), Cats, O. (author)Cities worldwide are looking for expanding the capacity of their public transport system while considering budget limitations. Bus Rapid Transit (BRT) systems are increasingly considered as alternatives for designing a mass public transport in mid-size cities in developed countries. While operations have been recognized as an important...journal article 2020
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Alonso González, M.J. (author), Cats, O. (author), van Oort, N. (author), Hoogendoorn-Lanser, S. (author), Hoogendoorn, S.P. (author)Simulation studies suggest that pooled on-demand services (also referred to as Demand Responsive Transport, ridesharing, shared ride-hailing or shared ridesourcing services) have the potential to bring large benefits to urban areas while inducing limited time losses for their users. However, in reality, the large majority of users request...journal article 2020