Full model overview ................................................................................................................... 2 1. Notes on vehicle adoption................................................................................................... 3 a. Vehicle Fleet Aging Chain.............................................................................................. 3 b. I...

This paper presents a heuristic column generation method for solving vehicle routing problems with a heterogeneous fleet of vehicles.The method may also solve the fleet size and composition vehicle routing problem and new best known solutions are reported for a set of classical problems. Numerical results show that the method is robust and efficient, particularly for medium and large size probl...

In this paper, we examine the utility of a heterogeneous fleet of aquatic robots to cooperatively assess large-scale aquatic ecosystems, with a specific focus on representing the responses of coral reef ecosystems to climate change. We approach this problem through a unique blend of persistent aquatic sampling, vision-based sensing, and cooperative mission planning across a fleet of heterogeneo...

Controlling a fleet usually implies to establish means of control of vehicles, to collect the data associated with the routes taken by these vehicles, to interpret and evaluate the meaning of the collected data and to make the appropriate decisions to improve the efficiency in the use of vehicles in an organization. The implementation of this process of fleet management is mainly performed manu...

Reporting of human accidents in the Norwegian Fishing Fleet has always been very difficult because there has been no tradition in making reports on all types of working accidents among fishermen, if the accident does not seem to be very serious or there is no economical incentive to report. Therefore reports are only written when the accidents are serious or if the fisherman is reported sick. R...

Environmental implications of fleet electrification highly depend on the adoption and utilization of electric vehicles at the individual level. Past research has been constrained by using aggregated data to assume all vehicles with the same travel pattern as the aggregated average. This neglects the inherent heterogeneity of individual travel behaviors and may lead to unrealistic estimation of ...

The purpose of this thesis is to study the available technologies for Automatic Vehicle Location (AVL) and dynamic fleet management systems and to determine the benefits of such systems in commercial transportation. The main focus of the research is on freight transportation. An AVL and dynamic fleet management system is an assembly of positioning, communication and information subsystems. The ...