This article reviews ten of the most important tabu search heuristics for the vehicle routing problem. Some of the main tabu search features are first desc...

In this paper we introduce a new formulation of the logistics network design problem encountered in deterministic, single-country, single-period contexts. O...

Assigning locomotives and cars to a set of scheduled trains is a complex but important problem for passenger railways. This task is normally carried out in ...

Given a set of flight legs to be flown by a single type of aircraft, the simultaneous aircraft routing and crew scheduling problem consists of determining a...

This paper presents a survey of the research on the Vehicle Routing Problem with Time Windows (VRPTW), an extension of the Capacitated Vehicle Routing Probl...

The problem of assigning locomotives and cars to trains is a complex task for most railways. In this paper, we propose a multi-commodity network flow based ...

An important aspect of railway planning concerns the distribution of locomotives and cars in the network and their assignment to the scheduled trains. In th...

One of the many problems faced by rail transportation companies is to optimize the utilization of the available stock of locomotives and cars. In this paper...

The aim of this paper is to present a survey of recent optimization models for the most commonly studied rail transportation problems. For each group of pro...

This article describes the results of a study aimed at improving linen delivery operations in a large teaching hospital in Montreal. Improvements over the p...

Uniformity tests based on a discrete form of entropy are introduced and studied in the context of empirical testing of uniform random number generators. Nu...