This paper addresses the design of container liner shipping service networks by explicitly taking into account empty container repositioning. Two key and interrelated issues, those of deploying ships and containers are usually treated separately by most existing studies on shipping network design. In this paper, both issues are considered simultaneously. The problem is formulated as a two-stage...

This paper addresses two practical problems from a liner shipping company, i.e., the container flow management problem and the ship deployment problem at the tactical planning level. The joint optimization model, as well as, a sequential model, is formulated to solve the problems. Our results show the company should implement the joint optimization model at the tactical planning level to improv...

Transportation of cars by sea is mainly performed by specialized vessels. These vessels are purpose built for transporting cars and trucks, but some also transport other rolling equipment (high and heavy) and non-containerized cargo (break bulk). In this paper we introduce a routing and scheduling problem for deployment of the fleet of roll-on roll-off (RoRo) vessels. This problem is based on a...

International container shipping industry experiences important innovation after the 1980s. This is caused by the progress of Asian shipping to stay abreast of the economic development and the authorization of the revised US Shipping Act in 1984. Before the act, container shipping industry is exempt from antitrust law. The act is intended to loosen regulation and promote competition. Consequent...

Air emissions from ships have become an important issue in sustainable shipping because of the low quality marine fuel consumed by ships. To reduce sulfur shipping, International Maritime Organization has established emission control areas (ECAs) where must use low-sulfur with at most 0.1% or take equivalent emission-reduction measures. The increases costs for liner companies and affects their ...

Shipping has always had a special relationship with competition law and economics. Even if regimes for the shipping industry continue to exist, most countries nowadays accept notion that markets should be more competitive. Competition authorities monitor this in or less regular fashion, various market concentration indexes. The liner is peculiar its widespread cooperation schemes between carrie...

In this work, a decision tool is developed for a liner shipping company to deploy its fleet considering vessel speeds and to find routes for cargos with transit time constraints simultaneously. This problem is referred as Service level Assignment and Container Routing Problem (SACRP) in the sequel. A Column Generation (CG) algorithm is implemented for the SACRP. Computational experiments are pe...

This study formulates a two-objective model to determine the optimal liner routing, ship size, and sailing frequency for container carriers by minimizing shipping costs and inventory costs. First, shipping and inventory cost functions are formulated using an analytical method. Then, based on a trade-off between shipping costs and inventory costs, Pareto optimal solutions of the twoobjective mod...