Search Results - subject:"Routing problem"

A Two-Stage Insga-Ii Approach for Two-Echelon Location-Routing Problem with Fuzzy Demand of Rural E-Commerce Logistics

Lu, Xiaojuan; Wang, Jianjun; Wu, Shuai; Zheng, Shiyu; … - 2023

In this paper, we propose the Two-Echelon Location-Routing Problem with Fuzzy Demand (2E-LRP-FD) of the " county …

Persistent link: https://www.econbiz.de/10014359593

Workload Equity in Vehicle Routing with a Medium-Term Perspective

Agius, Maxime; Absi, Nabil; Feillet, Dominique; Garaix, … - 2023

the literature by addressing equity on a longer term. We consider a time horizon of a few weeks and a test-bed routing … problem motivated by healthcare logistics, with customer demand progressively revealed. Having unbalanced routes at some … with different levels of control on equity. A dedicated branch-and-price algorithm is used to solve the daily routing …

Persistent link: https://www.econbiz.de/10014359594

Delay-Resistant Robust Vehicle Routing with Heterogeneous Time Windows

Schürmann, Lukas; Metz, Lukas; Mutzel, Petra; Niemann, Tim - 2023

We consider a robust variant of the vehicle routing problem with heterogeneous time windows (RVRP-HTW) with a focus on …

Persistent link: https://www.econbiz.de/10014359743

Real-Time Optimization for Relocation and Dispatching of Emergency Medical Services with Balanced Workload and Outsourced Ride-Hailing Services

Essus, Yamil; De La Fuente, Rodrigo; … - 2023

Unrestrained real-time relocation of Emergency medical services (EMS) leads to excessive and unbalanced workload. Online redeployment policies aim to reduce response times, compensating for the coverage gap left by busy ambulances, however, it is important to account for the additional effort...

Persistent link: https://www.econbiz.de/10014359752

A Bi-Objective Home Health Care Routing and Scheduling Problem Under Uncertainty

Zhao, Jiao; Wang, Tao; Monteiro, Thibaud - 2023

under uncertainty in home health care. It extends the classical constraints of the vehicle routing problem by considering …

Persistent link: https://www.econbiz.de/10014359887

The Parallel Drone Scheduling Vehicle Routing Problem with Collective Drones

Montemanni, Roberto; Dell'Amico, Mauro; Corsini, Andrea - 2023

Vehicle Routing Problem with Collective Drones. For the latter variant, we propose two Constraint Programming models and a …

Persistent link: https://www.econbiz.de/10014359906

Efficiently Solving the Bi-Objective Traveling Thief Problem Using Imperialist Competitive Algorithm : Case of Small Instances

Rabiei, Payman; Mirghaderi, Seyed-Hadi; Arias-Aranda, Daniel - 2023

Real-life problems are complex because they are typically made up of several sub-problems interacting. These interactions establish an interdependent relationship in which the quality of one partial solution impacts the quality of other partial solutions. Recently, a new benchmark known as the...

Persistent link: https://www.econbiz.de/10014360083

On Designing a Fire Emergency Vehicle Fleet

Luzon, Yossi; Baron, Opher; Verter, Vedat; Berman, Oded - 2023

Problem definition: The configuration of an emergency vehicle fleet (EVF) is critical to ensure that responders have the resources necessary to serve emergencies quickly and help prevent loss of life and property damage. Determining the fleet’s optimal design involves decisions regarding the...

Persistent link: https://www.econbiz.de/10014360087

Selection Hyper-Heuristics for Solving the Two-Echelon Location-Routing Problem with Different Intermediate Facilities

Hamm, Rebecca Megan; Kheiri, Ahmed - 2023

This work proposes a variation of the location-routing problem (LRP), a problem that interconnects two well-known N P …-hard optimisation problems: the vehicle routing problem (VRP) and facility location problem (FLP). There are many mathematical …

Persistent link: https://www.econbiz.de/10014360190

Routing One Million Customers in a Handful of Minutes

Accorsi, Luca; Vigo, Daniele - 2023

In this paper, we propose a new dataset of Capacitated Vehicle Routing Problem instances which are up to two orders of …

Persistent link: https://www.econbiz.de/10014360198