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The role of traffic simulation in shaping effective and sustainable innovative urban delivery interventions EURO Journal on Transportation and Logistics Pub Date : 2024-03-11 Yijie Su, Hadi Ghaderi, Hussein Dia
Cities around the globe face major last mile delivery (LMD) challenges as a result of surging online commerce activity, increased parcel delivery demands, lack of parking capacity, and severe traffic congestion particularly in inner city areas. Although a number of innovative solutions and pathways have been proposed to address these challenges, their full impacts are still not well understood due
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Inbound traffic capture link-design problem independent of assumptions on users’ route choices EURO Journal on Transportation and Logistics Pub Date : 2024-02-15 Ruri Sase, Satoshi Sugiura
In some traffic management situations, a cordon (a set of points at which traffic flows into a given area) is set in a road network to establish a reference for the location of equipment to implement traffic measurements and controls (e.g., traffic volume surveys and congestion charging). However, few studies have focused on the optimum location of a cordon. We devise a problem denoted the inbound
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Price optimal routing in public transportation EURO Journal on Transportation and Logistics Pub Date : 2024-02-13 Ricardo Euler, Niels Lindner, Ralf Borndörfer
We consider the in public transit (POEAP) in which we aim to calculate the Pareto-set of journeys with respect to ticket price and arrival time in a public transportation network. Public transit fare structures are often a combination of various fare strategies such as, e.g., distance-based fares, zone-based fares or flat fares. The rules that determine the actual ticket price are often very complex
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A fair multi-commodity two-echelon distribution problem EURO Journal on Transportation and Logistics Pub Date : 2024-01-23 Shohre Zehtabian
In the context of a short and local supply chain of fresh produce in the public sector, we introduce a fair multi-commodity two-echelon distribution problem. A decision maker has to decide on the planning of the first-echelon collection trips of commodities from suppliers to distribution centers equitably and on the second-echelon delivery routes of commodities from the centers to customers. In addition
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Modeling and solving a corporate vehicle-sharing problem combined with other modes of transport EURO Journal on Transportation and Logistics Pub Date : 2023-12-19 Miriam Enzi, Sophie N. Parragh, David Pisinger
We consider a car-sharing problem in a company during business hours. The employees, located at one or several offices, have to travel to one or more appointments each with a fixed location and fixed start and end times and return to one of the offices afterwards. Each employee trip can be carried out with one out of several alternative modes of transport. The considered modes of transport are a company
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Editorial Board EURO Journal on Transportation and Logistics Pub Date : 2023-12-11
Abstract not available
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Solving the Traveling Salesman Problem with release dates via branch and cut EURO Journal on Transportation and Logistics Pub Date : 2023-11-20 Agustín Montero, Isabel Méndez-Díaz, Juan José Miranda-Bront
In this paper we study the Traveling Salesman Problem with release dates (TSP-rd) and completion time minimization. The TSP-rd considers a single vehicle and a set of customers that must be served exactly once with goods that arrive to the depot over time, during the planning horizon. The time at which each requested good arrives is called release date and it is known in advance. The vehicle can perform
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Data-driven optimization for transport and logistics systems EURO Journal on Transportation and Logistics Pub Date : 2023-09-19 Shadi Sharif Azadeh, Nursen Aydin
Abstract not available
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Statistical-machine-learning-based intelligent relaxation for set-covering location models to identify locations of charging stations for electric vehicles EURO Journal on Transportation and Logistics Pub Date : 2023-08-19 Selcen Gülsüm Aslan Özşahin, Babek Erdebilli
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The aircraft recovery problem: A systematic literature review EURO Journal on Transportation and Logistics Pub Date : 2023-08-03 Mateus Santana, Jonathan De La Vega, Reinaldo Morabito, Vitória Pureza
Events that cause disruptions to air company flight schedules transporting passengers and cargo are commonplace in practice, and their operational and financial consequences are often relevant. The aircraft recovery problem (ARP) consists of recovering the flight schedules lost due to such events, determining new flight departure times and possible flight cancellations, as well as revising routes for
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Aircraft maintenance facility location planning EURO Journal on Transportation and Logistics Pub Date : 2023-07-26 Helman I. Stern, Robert M. Saltzman
This investigation combines the aircraft maintenance routing problem (AMRP) with the aircraft maintenance facility location problem as they are interdependent. Unlike the classical fixed charge location model, aircraft maintenance facility location is not based on static customer demands but on how aircraft move around the airline network while undergoing periodic maintenance checks. Two important
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Clustering and routing in waste management: A two-stage optimisation approach EURO Journal on Transportation and Logistics Pub Date : 2023-07-18 Massimiliano Caramia, Diego Maria Pinto, Emanuele Pizzari, Giuseppe Stecca
This paper proposes a two-stage model to tackle a problem arising in Waste Management. The decision-maker (a regional authority) is interested in locating sorting facilities in a regional area and defining the corresponding capacities. The decision-maker is aware that waste will be collected and brought to the installed facilities by independent private companies. Therefore, the authority wants to
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The two-flight low risk helicopter transportation problem under the split pickup scenario EURO Journal on Transportation and Logistics Pub Date : 2023-07-13 Hans Kellerer, Vitaly A. Strusevich
The paper considers a special class of routing problems with the objective of minimizing the passengers risk. A major area of application of the low risk models is helicopter transportation widely used in the petroleum industry. In general, the total risk is considered to be proportional to the number of passengers exposed to landings and takeoffs during several multi-leg flights. We give a review
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The warehouse reshuffling problem with swap moves and time limit EURO Journal on Transportation and Logistics Pub Date : 2023-07-08 Jan-Niklas Buckow, Sigrid Knust
In this paper, we study the warehouse reshuffling problem, where pallets in a storage have to be rearranged in an efficient way. A high-bay warehouse with an automated storage and retrieval system is considered, which is equipped with a twin shuttle stacker crane. This twin shuttle is designed to perform swap moves, where the pallet at a storage location is swapped with the pallet currently loaded
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A novel repositioning approach and analysis for dynamic ride-hailing problems EURO Journal on Transportation and Logistics Pub Date : 2023-06-15 Christian Ackermann, Julia Rieck
Mobility-on-demand services continue to grow in popularity and could provide a cheap and resource-saving alternative to private vehicles. However, to be truly attractive to the general public, these services must be thoroughly optimized. In this paper, we consider a ride-hailing problem where available vehicles have to be assigned to dynamically arising customer requests and, furthermore, vacant vehicles
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The benefit of complete trip information in free-floating carsharing systems EURO Journal on Transportation and Logistics Pub Date : 2023-06-05 Claudia Archetti, Maurizio Bruglieri, Gianfranco Guastaroba, M. Grazia Speranza
Free-floating and instant-access carsharing systems are two features of the most flexible carsharing systems. In the former, users are allowed to freely park the car in any legal parking spot within the boundaries defined by the service operator. In the latter, users are not requested to make any reservation in advance before picking up the car. This paper aims at evaluating the importance of complete
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The data-driven time-dependent orienteering problem with soft time windows EURO Journal on Transportation and Logistics Pub Date : 2023-06-09 Edison Avraham, Tal Raviv
In this paper, we study an extension of the orienteering problem where travel times are random and time-dependent and service times are random. Additionally, the service at each selected customer is subject to a soft time window; that is, violation of the window is allowed but subject to a penalty that increases in the delay. A solution is a tour determined before the vehicle departs from the depot
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Improving search for gasoline during a hurricane evacuation event using social media EURO Journal on Transportation and Logistics Pub Date : 2023-06-07 Abhinav Khare, Rajan Batta, Qing He
Panic-buying and shortages of essential commodities is common during early phases of a disaster or an epidemic. The goal of this paper is develop a methodology which includes social media information in optimization models of searching essential commodities during disasters and improves the efficiency of search. Specific contributions in the data processing of social media posts include the development
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Evaluating pricing strategies for premium delivery time windows EURO Journal on Transportation and Logistics Pub Date : 2023-05-23 Charlotte Köhler, Jan Fabian Ehmke, Ann Melissa Campbell, Catherine Cleophas
In the challenging environment of attended home deliveries, pricing delivery options can play a crucial role to ensure profitability and service quality of retailers. To differentiate between standard and premium delivery options, many retailers include time windows of various lengths and fees within their offer sets. Even though customers prefer short delivery time windows, longer time windows can
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A review of principles and methods to decompose large-scale railway scheduling problems EURO Journal on Transportation and Logistics Pub Date : 2023-03-25 Florin Leutwiler, Francesco Corman
Providing punctual, reliable and performant services to customers is one main goal of railway network operators. The railway scheduling problem is to determine, ahead of time (timetabling), a plan describing the timing of the operations in a railway network, or updating such plan during operations (rescheduling). By optimization and automation, it is possible to operate more trains on the network,
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Centralized and decentralized algorithms for two-to-one matching problem in ridehailing systems EURO Journal on Transportation and Logistics Pub Date : 2023-02-15 Seyed Mehdi Meshkani, Bilal Farooq
In the context of on-demand ridehailing, we propose a heuristic matching algorithm where a passenger can share their ride with one more passenger while experiencing a high-quality service with a minimal increase in travel time. To evaluate the performance, we implemented the algorithm in a traffic microsimulator and compared it with a ride-matching algorithm developed by Simonetto et al. (2019) at
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Deep reinforcement learning for stochastic last-mile delivery with crowdshipping EURO Journal on Transportation and Logistics Pub Date : 2023-01-24 Marco Silva, João Pedro Pedroso, Ana Viana
We study a setting in which a company not only has a fleet of capacitated vehicles and drivers available to make deliveries but may also use the services of occasional drivers (ODs) willing to make deliveries using their own vehicles in return for a small fee. Under such a business model, a.k.a crowdshipping, the company seeks to make all the deliveries at the minimum total cost, i.e., the cost associated
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Combining value function approximation and multiple scenario approach for the effective management of ride-hailing services EURO Journal on Transportation and Logistics Pub Date : 2023-01-24 R.-Julius O. Heitmann, Ninja Soeffker, Marlin W. Ulmer, Dirk C. Mattfeld
The availability of various services for individual mobility is increasing, especially in urban areas. Dynamic ride-hailing services address these aspects and are gaining market share with providers such as MOIA, UberX Share, Sprinti or BerlKönig. To be able to offer competitive pricing for such a service and at the same time provide a high service quality (e.g. fast response times), effective capacity
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Optimizing inventory control through a data-driven and model-independent framework EURO Journal on Transportation and Logistics Pub Date : 2022-12-27 Evangelos Theodorou, Evangelos Spiliotis, Vassilios Assimakopoulos
Machine learning has shown great potential in various domains, but its appearance in inventory control optimization settings remains rather limited. We propose a novel inventory cost minimization framework that exploits advanced decision-tree based models to approximate inventory performance at an item level, considering demand patterns and key replenishment policy parameters as input. The suggested
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Pickup and delivery problem with hard time windows considering stochastic and time-dependent travel times EURO Journal on Transportation and Logistics Pub Date : 2022-12-09 Zheyu Wang, Maged Dessouky, Tom Van Woensel, Petros Ioannou
Due to the uncertain nature of the traffic system, it is not trivial for delivery companies to reliably satisfy customers’ time windows. To guarantee the reliability of the pickup and delivery service under stochastic and time-dependent travel times, we consider a pickup and delivery problem with hard time windows considering stochastic and time-dependent travel times. We propose a chance-constrained
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Introduction to the special issue on integration of human factors and ergonomics EURO Journal on Transportation and Logistics Pub Date : 2022-11-14 Nabil Absi, Valeria Borodin, Diego Cattaruzza
Abstract not available
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Formulating multi-class user equilibrium using mixed-integer linear programming EURO Journal on Transportation and Logistics Pub Date : 2022-11-07 Xiao Lin, Ludovic Leclercq, Lóránt Tavasszy, Hans van Lint
We introduce an approach to formulate and solve the multi-class user equilibrium traffic assignment as a mixed-integer linear programming (MILP) problem. Compared to simulation approaches, the analytical MILP formulation makes the solution of network assignment problems more tractable. When applied in a multi-class context, it obviates the need to assume a symmetrical influence between classes and
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Ring hierarchical hub network design problem: Exact and heuristic solution methods EURO Journal on Transportation and Logistics Pub Date : 2022-10-22 Alireza Eydi, Amir Khaleghi, Khaled Barzegar
In this paper, we study the hierarchical hub network design problem with a ring-star-star structure. In this problem, the hubs are located in two layers. In the first layer, central hubs (main hubs) are located in a ring structure, and in the second layer, secondary hubs are located. Each secondary hub is allocated to a central hub. Other demand points can also be allocated to each of these hubs (central
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Exact and heuristic approaches to Truck–Drone Delivery Problems EURO Journal on Transportation and Logistics Pub Date : 2022-10-22 Júlia C. Freitas, Puca Huachi V. Penna, Túlio A.M. Toffolo
Collaborative delivery employing drones in last-mile delivery has been an extensively studied topic in recent years. In this paper, it is studied Truck–Drone Delivery Problems (TDDPs) in which a traditional delivery truck is gathered with a drone to cut delivery times and costs. The vehicles work together in a hybrid operation involving one drone launching from a larger vehicle that operates as a mobile
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Scheduling cross-docking operations under uncertainty: A stochastic genetic algorithm based on scenarios tree EURO Journal on Transportation and Logistics Pub Date : 2022-10-05 Andrea Gallo, Riccardo Accorsi, Renzo Akkerman, Riccardo Manzini
A cross-docking terminal enables consolidating and sorting fast-moving products along supply chain networks and reduces warehousing costs and transportation efforts. The target efficiency of such logistic systems results from synchronizing the physical and information flows while scheduling receiving, shipping and handling operations. Within the tight time-windows imposed by fast-moving products (e
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Location, transshipment and routing: An adaptive transportation network integrating long-haul and local vehicle routing EURO Journal on Transportation and Logistics Pub Date : 2022-09-13 Junko Hosoda, Stephen J. Maher, Yuji Shinano, Jonas Christoffer Villumsen
The routing of commodities is a tactical problem in supply chain management that aims to synchronise transportation services connecting a network of warehouses and consolidation locations. This paper considers the routing of commodities in a transportation network that is flexible in response to demand through changes to regional warehouse clustering and the designation of consolidation locations.
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Introduction to the special issue on Advances in Facility Location and Logistics EURO Journal on Transportation and Logistics Pub Date : 2022-09-07 Isabel Correia, Teresa Melo, Olivier Péton
Abstract not available
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Truck driver scheduling with interdependent routes and working time constraints EURO Journal on Transportation and Logistics Pub Date : 2022-09-05 Carlo S. Sartori, Pieter Smet, Greet Vanden Berghe
In transportation and logistic applications, scheduling hours of service for multiple, interdependent truck drivers to ensure compliance with regulatory resting requirements and service time windows is an extremely challenging task. Models previously designed to schedule truck drivers with interdependent routes have been capable of capturing such scenarios. However, until now, there has been no efficient
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A game-theoretic approach for reliability evaluation of public transportation transfers with stochastic features EURO Journal on Transportation and Logistics Pub Date : 2022-08-13 Giorgio Gnecco, Yuval Hadas, Marcello Sanguineti
A game-theoretic approach based on the framework of transferable-utility cooperative games is developed to assess the reliability of transfer nodes in public transportation networks in the case of stochastic transfer times. A cooperative game is defined, whose model takes into account the public transportation system, the travel times, the transfers and the associated stochastic transfer times, and
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Pedestrian evacuation planning: Unveiling evacuation routes via column generation EURO Journal on Transportation and Logistics Pub Date : 2022-07-27 Nicolás Cabrera, Jorge A. Huertas, Andrés L. Medaglia
Evacuation drills are critical to evaluate emergency preparedness and infrastructure capacity. Before conducting drills, it is necessary to design the evacuation routes that people are likely to follow in a real evacuation. In this paper, we present a path-oriented optimization model for evacuation planning. To solve this model, we propose a column-oriented approach in which a master problem assigns
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Does fleet standardization matter on profitability and financial policy response of airlines during COVID-19 pandemics in the U.S? EURO Journal on Transportation and Logistics Pub Date : 2022-07-22 Metehan Atay, Yunus Eroğlu, Serap Ulusam Seckiner
This study tries to find the contribution of the fleet standardization index of airline companies through the financial values of airlines in the COVID-19 pandemic crisis. One of the driving forces of this research is the stagnation in the aviation industry, along with the cessation of all international flights to prevent worse pandemic conditions. The main contribution of the study is clarifying the
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Helicopter recovery in an oil and gas industry: Model and solution approaches EURO Journal on Transportation and Logistics Pub Date : 2022-06-21 Jonathan De La Vega, Thiago Vieira, Mateus Santana, Vitória Pureza, Reinaldo Morabito, Roberto Tavares, Yan Bastos, Paulo César Ribas
Although optimization techniques have been successfully applied for a number of airline operations, aircraft recovery remains a challenge for both practitioners and researchers due to its complexity and the usual need of a quick response in practical settings. In this paper, we consider the case of a Brazilian oil and gas company that uses a heterogeneous fleet of helicopters for passenger transportation
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Crane scheduling for end-of-aisle picking: Complexity and efficient solutions based on the vehicle routing problem EURO Journal on Transportation and Logistics Pub Date : 2022-06-14 Nils Boysen, Simon Emde, Konrad Stephan
To relieve human order pickers from unproductive walking through a warehouse, parts-to-picker systems deliver demanded stock keeping units (SKUs) toward picking workstations. In a wide-spread parts-to-picker setup, a crane-operated automated storage and retrieval system (ASRS) delivers bins with demanded SKUs toward an end-of-aisle picking workstation and returns them back into the rack once the picks
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Bundle selection approaches for collaborative practical-oriented Pickup and Delivery Problems EURO Journal on Transportation and Logistics Pub Date : 2022-06-14 Cornelius Rüther, Julia Rieck
Due to the increasing price pressure in the less-than-truckload (LTL) market, horizontal cooperation is an effective and efficient way for small- and medium-sized LTL carriers to enhance their profits by exchanging requests. For this purpose, a decentralized auction-based collaboration framework has proven to provide a good approach. In this paper, such a collaboration framework is adopted and extended
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Rapid fulfillment of online orders in omnichannel grocery retailing EURO Journal on Transportation and Logistics Pub Date : 2022-05-10 Christian Dethlefs, Manuel Ostermeier, Alexander Hübner
Establishing innovative fulfillment options for online orders has become a key challenge for bricks-and-mortar retailers. A mere focus on store sales is no longer affordable due to the competition by pure online players. Retailers are continuously developing new approaches for online order fulfillment and last-mile logistics. Further shortening lead times is becoming even more important in this context
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Timetable merging for the Periodic Event Scheduling Problem EURO Journal on Transportation and Logistics Pub Date : 2022-04-20 Niels Lindner, Christian Liebchen
We propose a new mixed integer programming based heuristic for computing new benchmark primal solutions for instances of the PESPlib. The PESPlib is a collection of instances for the Periodic Event Scheduling Problem (PESP), comprising periodic timetabling problems inspired by real-world railway timetabling settings, and attracting several international research teams during the last years. We describe
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Design of a two-echelon last-mile delivery model EURO Journal on Transportation and Logistics Pub Date : 2022-04-20 Juan C. Pina-Pardo, Matheo Moreno, Miguel Barros, Alexandre Faria, Matthias Winkenbach, Milena Janjevic
Due to high congestion in cities and growing demand for last-mile delivery services, several companies have been implementing two-echelon distribution strategies over the past few years. Notably, the installation of urban transshipment points has gained increasing attention, used by logistics operators to transfer goods from large freight trucks to smaller and more agile vehicles for last-mile delivery
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Integrating weather impact in air traffic controller shift scheduling in remote and conventional towers EURO Journal on Transportation and Logistics Pub Date : 2022-03-31 Eulalia Hernández-Romero, Billy Josefsson, Anastasia Lemetti, Tatiana Polishchuk, Christiane Schmidt
Weather affects the work of air traffic controllers, however, for staff scheduling in Remote Tower Centers (RTCs) it has not been taken into account. We study the impact of various weather phenomena on air traffic controller (ATCO) taskload through structured interviews with ATCOs. We deduce taskload-driven impact factors and the corresponding thresholds for the intensity of the weather phenomena at
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A topological approach for identifying pricing controller locations to ensure controllability of transportation networks EURO Journal on Transportation and Logistics Pub Date : 2022-03-28 Xavier Mazur, Marco Rinaldi, Richard D. Connors, Francesco Viti
To use efficiently the infrastructure of transportation networks, control strategies have been developed with the aim to reduce negative externalities, such as congestion and pollutant emissions. Previous works demonstrated that the maximum performance achievable by traffic control policies depends on the number and location of controllers employed, which implies the need to determine a set of controllers
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Electric flight scheduling with battery-charging and battery-swapping opportunities EURO Journal on Transportation and Logistics Pub Date : 2022-02-16 Mihaela Mitici, Madalena Pereira, Fabrizio Oliviero
With the current advances in aircraft design and Lithium-Ion batteries, electric aircraft are expected to serve as a replacement for conventional, short-range aircraft. This paper addresses the main operational challenges for short-range flights operated with electric aircraft: determining the investment needs for a fleet of electric aircraft, and the logistics of charging stations and swap batteries
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Integrated optimization of sequential processes: General analysis and application to public transport EURO Journal on Transportation and Logistics Pub Date : 2022-02-09 Philine Schiewe, Anita Schöbel
Planning in public transportation is traditionally done in a sequential process: After the network design process, the lines and their frequencies are planned. When these are fixed, a timetable is determined and based on the timetable, the vehicle and crew schedules are optimized. After each step, passenger routes are adapted to model the behavior of the passengers as realistically as possible. It
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A branch-and-price algorithm for a team orienteering problem with fixed-wing drones EURO Journal on Transportation and Logistics Pub Date : 2022-01-07 Kaarthik Sundar, Sujeevraja Sanjeevi, Christopher Montez
This paper formulates a team orienteering problem with multiple fixed-wing drones and develops a branch-and-price algorithm to solve the problem to optimality. Fixed-wing drones, unlike rotary drones, have kinematic constraints associated with them, thereby preventing them to make on-the-spot turns and restricting them to a minimum turn radius. This paper presents the implications of these constraints
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The price of anarchy in truckload transportation spot markets EURO Journal on Transportation and Logistics Pub Date : 2022-01-24 Michael Haughton, Borzou Rostami, Shervin Espahbod
A concept of relevance to spot markets for truck-based freight transportation services is the price of anarchy (PoA), which defines the performance inferiority of decentralized market mechanisms for consummating transactions (vis-à-vis centralized mechanisms). To examine this concept in the context of transportation spot markets, this study uses a combination of behavioral experiments and mathematical
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A branch-and-price algorithm for the robust single-source capacitated facility location problem under demand uncertainty EURO Journal on Transportation and Logistics Pub Date : 2022-01-01 Jaehyeon Ryu, Sungsoo Park
We consider the robust single-source capacitated facility location problem with uncertainty in customer demands. A cardinality-constrained uncertainty set is assumed for the robust problem. To solve it efficiently, we propose an allocation-based formulation derived by Dantzig–Wolfe decomposition and a branch-and-price algorithm. The computational experiments show that our branch-and-price algorithm
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How incidents impact congestion on roadways: A queuing network approach EURO Journal on Transportation and Logistics Pub Date : 2021-12-25 Pedro Cesar Lopes Gerum, Melike Baykal-Gürsoy
Motivated by the need for transportation infrastructure and incident management planning, we study traffic density under non-recurrent congestion. This paper provides an analytical solution approximating the stationary distribution of traffic density in roadways where deterioration of service occurs unpredictably. The proposed solution generalizes a queuing model discussed in the literature to long
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Effect of raw material substitution on the facility location decision under a carbon tax policy EURO Journal on Transportation and Logistics Pub Date : 2021-12-18 Y. Mechouar, V. Hovelaque, C. Gaigné
Current environmental issues that have been made unavoidable by environmental regulations have become new constraints for industrial companies. In this paper, we consider a joint production-location problem for supply chains under a carbon tax policy on transport-related carbon emissions. We characterize the relationship that links the production level to the input quantities by considering a production
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Coordinating feeder and collector public transit lines for efficient MaaS services EURO Journal on Transportation and Logistics Pub Date : 2021-12-07 K. Gkiotsalitis
Coordinating the schedules of feeder and collector public transit lines can reduce the passenger travel times. With advances in smart mobility, mobility-as-a-service (MaaS) schemes allow passengers to book a combined ticket for all their trip legs. This detailed information about the origins and destinations of door-to-door trips offers the opportunity to coordinate the schedules of public transport
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A multi-agent semi-cooperative unmanned air traffic management model with separation assurance EURO Journal on Transportation and Logistics Pub Date : 2021-11-28 Yanchao Liu
This paper presents an air traffic management framework to enable multiple fleets of unmanned aerial vehicles to traverse dense, omni-directional air traffic safely and efficiently. The main challenge addressed here is separation assurance in the absence of full coordination and communication. In this framework, each fleet is independently managed by a routing agent, which progressively plans the non-overlapping
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A new approach for the traveling salesperson problem with hotel selection EURO Journal on Transportation and Logistics Pub Date : 2021-11-30 Augusto Pizano Vieira Beltrão, Luiz Satoru Ochi, José André de Moura Brito, Gustavo Silva Semaan, Nelson Maculan, Augusto César Fadel
The Traveling Salesperson Problem with Hotel Selection (TSPHS) corresponds to a variant of the classic Traveling Salesman Problem (TSP) where the salesperson must establish a route in order to visit and attend all customers and return to the point of origin. At the end of each working day, if they had not attended all customers, the salesperson must go to a hotel (and stay there overnight). The objective
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Enforcing fuel-optimal traffic patterns EURO Journal on Transportation and Logistics Pub Date : 2021-11-22 Sophia Boesen, Andrea Raith, Clemens Thielen, James Tidswell
Traffic Assignment (TA) models route choices of users of a road transport network assuming a known relationship between traffic flow and travel cost, and fixed demand between origin and destination points in the network. In this paper, we consider the case where the users’ travel cost function is a weighted sum of travel time, fuel consumption, and tolls. We show the existence of speed limits and tolls
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The Dynamic Electric Carsharing Relocation Problem EURO Journal on Transportation and Logistics Pub Date : 2021-11-19 Simen Hellem, Carl Andreas Julsvoll, Magnus Moan, Henrik Andersson, Kjetil Fagerholt, Giovanni Pantuso
This article addresses a relocation and recharging problem faced by modern carsharing operators who manage a fleet of electric vehicles. As customers utilize the fleet, batteries are depleted and vehicles are possibly left in low-demand locations. Consequently, carsharing operators need to arrange the charging of depleted batteries and the relocation of poorly positioned vehicles in order to better
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Study on sensitivity of electric bus systems under simultaneous optimization of charging infrastructure and vehicle schedules EURO Journal on Transportation and Logistics Pub Date : 2021-09-01 Miriam Stumpe, David Rößler, Guido Schryen, Natalia Kliewer
The transition from traditional fuel-based bus transportation towards electric bus systems is regarded as a beacon of hope for emission-free public transport. In this study, we focus on battery electric bus systems, in which charging is possible at a variety of locations distributed at terminal stations over the entire bus network. In such systems, two intertwined planning problems to be considered
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Solving the service-oriented single-route school bus routing problem: Exact and heuristic solutions EURO Journal on Transportation and Logistics Pub Date : 2021-09-10 Farnaz Farzadnia, Jens Lysgaard
This paper addresses a school bus routing problem, which is classified as a location–allocation–routing problem. The problem consists of selecting pickup locations, allocating students to them, and generating a route that traverses between them. The proposed model is for a single school and a single-route. The objective is to find the subset of pickup stops aiming to minimize the total distance walked
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Modelling and comparison of stability metrics for a re-optimisation approach of the Inventory Routing Problem under demand uncertainty EURO Journal on Transportation and Logistics Pub Date : 2021-09-01 Faycal A. Touzout, Anne-Laure Ladier, Khaled Hadj-Hamou
The inventory routing problem (IRP) is an optimisation problem that integrates transportation and inventory management decisions. When subjected to unexpected events such as demand changes, the a posteriori approach consists in re-optimising including the data related to this event; the challenge is to ensure that the obtained solution does not deviate too much from the original one, lest that creates
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A multimodal solution approach for mitigating the impact of planned maintenance on metro rail attractiveness EURO Journal on Transportation and Logistics Pub Date : 2021-09-03 Alice Consilvio, Lorenzo Calabrò, Angela Di Febbraro, Nicola Sacco
The possible unavailability of urban rail-based transport services due to planned maintenance activities may have significant consequences on the perceived quality of service, thus affecting railway attractiveness. To cope with the mitigation of planned service interruptions and to guarantee a seamless journey and a good travel experience for passengers, it is possible to exploit the existing services