Vehicle routing problems (VRPs) are among the most studied problems in operations
research. Nowadays, the leading exact algorithms for solving many classes of VRPs are …

In the service industry, it is crucial to efficiently allocate scarce resources to perform tasks
and meet particular service requirements. What considerably complicates matters is when …

Last-mile operations in forward and reverse logistics are responsible for a large part of the
costs, emissions, and times in supply chains. These operations have increased due to the …

Abstract We study the Home Care Problem under uncertainty. Home Care refers to medical,
paramedical and social services that may be delivered to patient homes. The term includes …

We consider a class of routing optimization problems under uncertainty in which all
decisions are made before the uncertainty is realized. The objective is to obtain optimal …

This paper, for the first time, studies vehicle routing problems with synchronized visits
(VRPS) and stochastic travel and service times. In addition to considering a home …

In this paper we consider the vehicle routing problem with hard time windows and stochastic
service times (VRPTW-ST); in this variant of the classic VRPTW the service times are …

Uncertainty is frequently present in logistics and transportation, where vehicle routing
problems play a crucial role. However, due to the complexity inherent in dealing with …

The amount of goods and passengers to transport as well as calls for physical services at
customers increase worldwide, especially within urban areas. Transportation and services …

We address a routing and appointment scheduling problem with uncertain service and travel
times arising from home service practice. Specifically, given a set of customers within a …