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Maximilian Kronmueller; Andrés Fielbaum; Javier Alonso-Mora Abstract This work formally defines the problem of fleet sizing with delays (FSD), where the option of delaying individual tasks within fleet sizing is considered. We prove that the FSD problem is NP-hard and solve a formulation of the FSD problem as a mixed integer linear... read more →

Andrés Fielbaum, Javier Alonso-Mora Abstract On-demand ridepooling (ODRP) vehicles follow routes that are fully flexible. However, when the system does not provide door-to-door service and users can be asked to walk, their paths tend to concentrate, particularly along main streets that connect highly demanded areas of the city. These frequently travelled segments are... read more →

Marco Batarce, Franco Basso, Leonardo J. Basso Abstract This study examines the relevant flow variables on urban highways in Santiago de Chile. The objective is to contribute to the knowledge of the elasticity of the flow on highways in less developed nations, bearing in mind that existing studies tend to focus on European countries and... read more →

Yu Wang, Charisma Choudhury, Thomas O. Hancock, Yacan Wang, Juan de Dios Ortúzar Abstract We aim to understand the effect of different information types on risk perception and examine the relationship between perceived risk and travel behaviour during a pandemic outbreak. A hybrid choice model structure, incorporating a multiple discrete-continuous extreme value model, was formulated and estimated to explore... read more →

Agustín Chiu, Gustavo Angulo, Homero Larraín Abstract The Inventory Routing Problem (IRP) arises in logistics operations when routing and inventory decisions are made simultaneously. In this work, some ideas to improve the long-term performance of the rolling horizon strategy are explored. First, three simple modifications to the IRP are tested to improve its long-term performance:... read more →

Hernán Catalán, Hans Lobel & Juan Carlos Herrera Abstract The way in which public transport buses are driven has an influence in users’perception and satisfaction with the service. Bus driver’s behavior is usually obtained surveying passengers and/or using the mystery passenger method, not necessarily allowing for an objective and continuous evaluation.... read more →

Yixue Zhang, Steven Farber, Mischa Young, Ignacio Tiznado-Aitken, Timothy Ross  Abstract People with disabilities (PWD) represent the largest minority group in Canada. Many municipalities have implemented paratransit services and subsidized accessible taxi services to provide affordable and equitable transport choices for PWD. However, few scholars have examined who is using these services and how they use them, making it... read more →

Sergio R. Jara-Diaz, Esteban Muñoz-Paulsen Abstract Although cable car services have become an integral part of the transit system in many cities in the world, their specific technology has never been studied from the viewpoint of the links between optimal design and marginal cost pricing. Here we formulate, solve and apply a first model... read more →

Tomás Rossetti, Ricardo A. Daziano Abstract At-home antigen (rapid) tests have been successfully deployed in many countries to quickly detect COVID-19 cases. Whereas antigen tests have multiple advantages, they tend to have higher rates of false diagnosis than polymerase chain reaction (PCR) tests. Since individuals tend to process risk non-linearly, an ad-hoc method... read more →