This paper proposes an improved ant colony optimization (IACO) to solve period vehicle routing problem with time windows (PVRPTW), in which the planning period is extended to several days and each customer must be served within a specified time window. Multi-dimension pheromone matrix is used to...

This paper contributes to the maritime transport literature by examining the relative efficiency of firms in the three key sectors of the shipping industry, i.e. dry, wet and container shipping. Two relative efficiency models are developed to assess relative market and relative operating...

To date, forecasts of the demand impacts of lateness and reliability have been derived largely from individual-level models taken at a snapshot in time. The contribution of this paper is to develop a dynamic model of rail demand at the market-level, yielding short and long-run elasticities with...

In this study we empirically analyzed the airfare level at which most low-cost carriers (LCCs) entered the market, what impacts LCCs had on the airfares of incumbent carriers, whether the impacts differed depending on how many LCCs existed in a market and on whether LCC(s) entered a full-service...

This paper concerns coordination of enterprise decisions such as suppliers and components selection, pricing and inventory in a multi-level supply chain composed of multiple suppliers, a single manufacturer and multiple retailers. The problem is modeled as a three-level dynamic non-cooperative...

Transportation service facilities often form system choke points with service rendered to entities from multiple queues that require staging for processing. With an MIP model that accommodates sequence-dependent setup times and processing times, we demonstrate how scheduling can be improved...

This paper proposes an air transport market model dealing with airline network design strategy using service frequency and aircraft size. The main purpose of the research was to reveal the relation between the runway capacity constraint at the hub airport and airline behavior. We extend the...

This paper presents three strategic-level models for locating away-from-port storage yards for empty shipping containers. The main objective is to reduce the mileage involved in repositioning empty containers. The models presented attempt to capture the greedy behavior of individual trucking...

This paper applies price differentiation of time segment, service class, and advance purchase to modeling cabin choice behavior. The proposed model was constructed with combining revealed-preference and stated-preference and validated by the case of reserved and unreserved-seat cabins in Taiwan...