This paper presents a fleet management application with heterogeneity of devices and data, database synchronization, group transactions, peer-to-peer computing, and mobility support. We simulate a delivery service's fleet of trucks with PCs and hand-held devices, and describe how the system works together. To send messages between devices, we use the Simple Object Access Protocol (SOAP), allowi...

This paper introduces the fleet size and mix location-routing problem with time windows (FSMLRPTW) which extends the location-routing problem by considering a heterogeneous fleet and time windows. The main objective is to minimize the sum of vehicle fixed cost, depot cost and routing cost. We present mixed integer programming formulations, a family of valid inequalities and we develop a powerfu...

Customer relationship management is of high importance as it strengthens customer satisfaction. Providing consistent service cultivates retention and brand loyalty. This paper examines a new customer-oriented routing problem, the Consistent Vehicle Routing Problem with heterogeneous fleet. The objective to create cost-efficient plans, utilising fixed fleet vehicles operational characteristics, ...

Aims: This study proposes a bi-objective linear integer programming model for heterogeneous fleet VAP with emissions considerations. Profit maximization and minimization objectives are employed to handle economic environmental sustainability purposes. Background: Our literature survey shows that there is no the considerations simultaneously consider vehicle heterogeneity, penalty costs unmet de...

Abstract In the classic Vehicle Routing Problem (VRP) a fleet of of vehicles has to visit a set of customers while minimising the operations’ costs. We study a rich variant of the VRP featuring split deliveries, an heterogeneous fleet, and vehiclecommodity incompatibility constraints. Our goal is twofold: define the cheapest routing and the most adequate fleet. To do so, we split the problem in...

Networked robotic fleet consists of multiple robots with heterogeneous capabilities that jointly perform a mission. Due to the ability to distribute heterogeneous robots in a working environment and exploit their cooperation and collaboration capacities, it has been shown that utilizing a robotic fleet for accomplishing a given mission is faster and more efficient than using a single robot. Now...

Transportation is one of the important infrastructures constituting the base and requisite for different levels of people’s access and movement to various locations. Transportation systems are one of the indices of the development of a region. Optimizing these systems contributes to improving performance and reducing costs of offering services to users. Hence, methods should be adopted with whi...