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Tirachini, Alejandro (author), Godachevich, Javiera (author), Cats, O. (author), Muñoz, Juan Carlos (author), Soza-Parra, Jaime (author)The most relevant issues related to headway variability in public transport planning, operations and quality of service are reviewed in this paper. We discuss the causes and consequences of headway variability, the alternative metrics that have been proposed to measure it, the preventive and reactive strategies to control headway variability...review 2021
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Yap, M.D. (author), Cats, O. (author)Many public transport networks worldwide experience high crowding levels. Overcrowding can result in passengers not able to board the first arriving vehicle. We infer how waiting time induced by being denied boarding in crowded public transport systems is valued by passengers, based on observed passenger route choice behaviour. For this purpose,...journal article 2021
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Gkiotsalitis, Konstantinos (author), Cats, O. (author)Public transport is one of the most disrupted sectors of the COVID-19 pandemic with reported ridership drops up to 90% in majorly affected countries. As many government authorities strive to partially resume activities, public transport operators are in an urgent need for models that can evaluate the impact of different social distancing...journal article 2021
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Zhao, Jing (author), Sun, Sicheng (author), Cats, O. (author)This study aims to jointly optimise regular and demand responsive transit (DRT) services, which can offer opportunities for leveraging on their respective advantages. An optimisation model with the objective of minimising the total travel time of passengers and the total fleet size is proposed. The terminal bus stops of regular bus lines, the...journal article 2021
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Gkiotsalitis, K. (author), Cats, O. (author)In this literature review, we systematically review studies on public transit control with a specific focus on at-stop measures. In our synthesis of the relevant literature, we consider three perspectives: (1) the mathematical models of the proposed methodologies; (2) their complexity; (3) their applicability in real-time operations and their...journal article 2021
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Geržinič, N. (author), van Cranenburgh, S. (author), Cats, O. (author), Lancsar, Emily (author), Chorus, C.G. (author)Since the introduction of Discrete Choice Analysis, countless efforts have been made to enhance the efficiency of data collection through choice experiments and to improve the behavioural realism of choice models. One example development in data collection are best-worst discrete choice experiments (BWDCE), which have the benefit of obtaining...journal article 2021
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Dixit, M. (author), Cats, O. (author), Brands, T. (author), van Oort, N. (author), Hoogendoorn, S.P. (author)Capturing unobserved correlation between overlapping routes is a non-trivial problem in route choice modelling. For urban transit networks, research so far has been inconclusive on how this overlap is perceived by travellers. We estimate a series of path size correction logit (PSCL) models to account for alternative specifications of route...journal article 2021
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Peftitsi, Soumela (author), Jenelius, Erik (author), Cats, O. (author)As travel demand grows in many cities around the world, overcrowding in public transport systems has become a major issue and has many negative effects for both users and operators. Measures to address on-board congestion span from large-scale strategic investments (e.g. increasing infrastructure capacity), through tactical planning (e.g....journal article 2021
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Shelat, S. (author), Cats, O. (author), van Lint, J.W.C. (author)Although waiting times are inherently uncertain in public transport networks, previous research has primarily studied route choice behaviour under risk. Since understanding such behaviour is important to correctly model network flows and gain better understanding of traveller satisfaction, we propose a method to assess travellers’ route...journal article 2021
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Drabicki, Arkadiusz (author), Cats, O. (author), Kucharski, R.M. (author)Bus bunching is a well-known problem in public transport networks. It is characterized by a self-amplifying relationship between uneven distribution of rising passenger loads and deteriorating service regularity. The focus of this study is to analyse whether this negative feedback loop can be addressed by providing real-time crowding...conference paper 2021
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Dixit, M. (author), Chowdhury, S.J. (author), Cats, O. (author), Brands, T. (author), van Oort, N. (author), Hoogendoorn, S.P. (author)Circuity of transit networks, defined as the ratio of network to Euclidean distance traveled from origin to destination stop, has been known to influence travel behavior. In addition to the longer time spent in travel, for networks where fare is based on distance traveled, higher circuity also means higher fare for the same Euclidean distance...journal article 2021
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Kholodov, Yaroslav (author), Jenelius, Erik (author), Cats, O. (author), van Oort, N. (author), Mouter, N. (author), Cebecauer, Matej (author), Vermeulen, A.A.J. (author)This paper develops a method for analysing the elasticity of travel demand to public transport fares. The methodology utilizes public transport smartcard data for collecting disaggregate full population data about passengers’ travel behaviour. The study extends previous work by deriving specific fare elasticities for distinct socioeconomic (e...journal article 2021
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Leffler, David (author), Burghout, Wilco (author), Jenelius, Erik (author), Cats, O. (author)The paper develops a simulation model and evaluates fixed versus on-demand operational designs of a station-based automated feeder service. The evaluation considers the operational cost and average passenger level-of-service trade-offs as well as distributional differences in waiting times. Two case studies are used to evaluate such trade...journal article 2021
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Cats, O. (author), Hijner, Anne Mijntje (author)Delays in transport networks has adverse implications for infrastructure and service managers as well as travellers. While it is widely acknowledged that delays occurring across the transport networks may be related, there are is lack of knowledge on the underlying properties of these relations and means for quantifying them. To this end, we...journal article 2021
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Winter, M.K.E. (author), Cats, O. (author), Martens, Karel (author), van Arem, B. (author)With the anticipated introduction of self-driving vehicles, new challenges arise for urban transport- and planning authorities. This study contributes to the efforts of formulating the potential opportunities and threats stemming from the introduction of larger fleets of self-driving vehicles to our cities, and what action could be taken by...journal article 2021
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Hatzenbühler, Jonas (author), Cats, O. (author), Jenelius, Erik (author)The maturing of autonomous driving technology in recent years has led to several pilot projects and the initial integration of autonomous pods and buses into the public transport (PT) system. An emerging field of interest is the design of public transport networks operating autonomous buses and the potential to attract higher levels of travel...journal article 2021
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Laskaris, G. (author), Cats, O. (author), Jenelius, Erik (author), Rinaldi, M. (author), Viti, Francesco (author)Holding has been extensively used as control strategy to regulate public transport operations, especially to maintain even headways and prevent buses of the same line to bunch up. Applying holding to multiple lines requires however to deal with the transition between corridor and branching segments. In this study, we introduce a holding...journal article 2021
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Buijtenweg, Abel (author), Verma, T. (author), Cats, O. (author), Donners, Barth (author), Wang, H. (author)Public transport networks constitute critical infrastructure in urban systems. Public transport networks are characterised by their hierarchical structure, yet methods to quantify their underlying hierarchy are lacking. We propose a metric for quantifying the hierarchy in public transport networks which incorporates topological as well as...conference paper 2021
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Rubensson, Isak (author), Susilo, Yusak (author), Cats, O. (author)When Public Transport Administrations propose changes in fare schemes or increased fares, they are often met with concerns regarding the proposed fare schemes fairness. Implicit in these concerns is an understanding of relations governing land use and public transport, impacting equity. In this paper, we use socio-economic statistics of...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 ridesplitting or shared ride-hailing/ridesourcing services) have the potential to bring large benefits to urban areas with little time loss for their users. However, the large majority of on-demand requests in existing services are for individual rides. In this study,...other 2020