vehicle routing

The Fuel Replenishment Problem:A Split-Delivery Multi-Compartment Vehicle Routing Problem with Multiple Trips

  • Joris Kinable
  • Li Wang
  • Tom Van Woensel
    • Categories Applications - OR and Management Sciences, Transportation Tags , , , , ,

    In this paper, we formally define and model the Fuel Replenishment Problem (FRP). The FRP is a multi-compartment, multi-trip, split-delivery VRP in which tanker trucks transport different types of petrol, separated over multiple vehicle compartments, from an oil depot to petrol stations. Large customer demands often necessitate multiple deliveries. Throughout a single working day, a … Read more

    An Iterative Graph Expansion Approach for the Scheduling and Routing of Airplanes

  • Armin Fügenschuh
  • Fabian Gnegel
    • Categories (Mixed) Integer Linear Programming, Branch and Cut Algorithms, Transportation Tags , , ,

    A tourism company that offers fly-in safaris is faced with the challenge to route and schedule its fleet of airplanes in an optimal way. Over the course of a given time horizon several groups of tourists have to be picked up at airports and flown to their destinations within a certain time-window. Furthermore the number … Read more

    Vehicle Routing Problem with Steep Roads

  • Carlos Brunner
  • Ricardo Giesen
  • Mathias A. Klapp
    • Categories Applications - OR and Management Sciences Tags ,

    Most routing decisions assume that the world is flat meaning that routing costs are modelled as a weighted sum of total distance and time spend by delivery vehicles. However, this assumption does not apply for urban logistics operations in cities with significant altitude differences. We fill a space in the VRP literature and model routing … Read more

    Robust Data-Driven Vehicle Routing with Time Windows

  • Andrew Lim
  • Melvyn Sim
  • Zhenzhen Zhang
  • Yu Zhang
    • Categories Robust Optimization, Stochastic Programming, Transportation Tags , ,

    Optimal routing solutions based on deterministic models usually fail to deliver promised on-time services in an uncertain real world, which can lead to the loss of customers and revenue. We study a vehicle routing problem with time windows (VRPTW) toward the end of mitigating the risk of late customer arrivals as much as possible when … Read more

    A branch and price algorithm for the resource constrained home health care vehicle routing problem

  • Neda Tanoumand
  • Tonguç Ünlüyurt
    • Categories Integer Programming, Linear Programming Tags , , ,

    We consider the vehicle routing problem with resource constraints motivated by a home health care application. We propose a branch and price algorithm to solve the problem. In our problem, we consider different types of patients that require a nurse or a health aid or both. The patients can be serviced by the appropriate vehicles … Read more

    Robust Optimization of a Broad Class of Heterogeneous Vehicle Routing Problems under Demand Uncertainty

  • Chrysanthos E. Gounaris
  • Anirudh Subramanyam
  • Panagiotis P. Repoussis
    • Categories Robust Optimization, Transportation Tags , , , , ,

    This paper studies robust variants of an extended model of the classical Heterogeneous Vehicle Routing Problem (HVRP), where a mixed fleet of vehicles with different capacities, availabilities, fixed costs and routing costs is used to serve customers with uncertain demand. This model includes, as special cases, all variants of the HVRP studied in the literature … Read more

    The Distributionally Robust Chance Constrained Vehicle Routing Problem

  • Shubhechyya Ghosal
  • Wolfram Wiesemann
    • Categories Robust Optimization, Stochastic Programming, Transportation Tags , ,

    We study a variant of the capacitated vehicle routing problem (CVRP), which asks for the cost-optimal delivery of a single product to geographically dispersed customers through a fleet of capacity-constrained vehicles. Contrary to the classical CVRP, which assumes that the customer demands are deterministic, we model the demands as a random vector whose distribution is … Read more

    A new drayage problem with different customer services and container requirements

  • Federica Bomboi
  • Jonas Prünte
    • Categories Transportation Tags , , ,

    This paper investigates a drayage problem generalizing a previously proposed, which is motivated by a case study of a real maritime carrier. To serve export and import customer requests in the hinterland of a port, a fleet of trucks able to carry one or two containers of the same size is adopted. The aim of … Read more

    An Approximation Algorithm for Vehicle Routing with Compatibility Constraints

  • Viswanath Nagarajan
  • Siqian Shen
  • Miao Yu
    • Categories Approximation Algorithms, Transportation Tags , ,

    We study a multiple-vehicle routing problem with a minimum makespan objective and compatibility constraints. We provide an approximation algorithm and a nearly-matching hardness of approximation result. We also provide computational results on benchmark instances with diverse sizes showing that the proposed algorithm (i) has a good empirical approximation factor, (ii) runs in a short amount … Read more

    Branch-Cut-and-Price for the Vehicle Routing Problem with Time Windows and Convex Node Costs

  • Qie He
  • Yongjia Song
  • Stefan Irnich
    • Categories Transportation Tags , , , ,

    Two critical yet frequently conflicting objectives for logistics and transportation service companies are improving customer satisfaction and reducing transportation cost. In particular, given a net- work of customer requests with preferred service times, it is very challenging to find vehicle routes and service schedules simultaneously that respect all operating constraints and minimize the total transportation … Read more