A diagrammatic approach is used to study the characteristics of the cruising taxi market. For cost modeling, both taxi operator and passenger are taken as service producers. The former provides his vehicle operation and the latter, his waiting and travel time. Market demand is defined as a...

An important aspect of logistics supply systems in agro industries is to manage the processes of harvesting and transporting raw materials, from the rural fields to the processing plants. The truck waiting times in the various queues of the plant reception area are of particular concern. This...

We present an optimization-based computational study to quantify the relative benefits and costs of sharing advance load information and preparing an advance pick-up and delivery plan (or preplanning) in load assignment problems in truckload trucking. Considering that the benefits of preplanning...

This paper examines the effects of constraining order circuity during the course of a dynamic pickup and delivery routing algorithm. Order circuity, the ratio of actual to direct shipping distance, affects shipping performance metrics such as transit time and vehicle utilization. The paper...

Survey data are analysed that portray how route conditions that potentially deter exit are assessed by managers of airlines with their home base in one of four deregulated regions. The paper thereby provides answers to the following questions: (1) What are the conditions that potentially erect...

In this research we combine airport selection, fleet routing and timetable setting to develop an integrated scheduling model. The objective is to maximize operating profit, given the related operating constraints. The model is formulated as a mixed integer program that is characterized as...

There has recently been a rather large reduction of between 34% and 75% in domestic aviation demand in Korea. The two primary causes were the introduction of several new highway services and the fact that Korea Train Express (KTX) began operating a route between Seoul and Daegu in April 2004....

In this paper, we consider the relationship between supply chain network equilibrium and transportation network equilibrium. We demonstrate that a supply chain network equilibrium model introduced earlier can be reformulated as a transportation network equilibrium model with elastic demands...

Motivated by lower costs per ton-mile, US Class I railroads have been replacing 263,000-pound gross vehicle weight (GVW) covered hopper cars with 286,000-pound GVW cars. In many cases, shortline railroads would have to upgrade their tracks and bridges to handle the heavier cars. This paper used...

This paper presents a dynamic customer group-based logistics resource allocation methodology for the use of demand-responsive city logistics distribution operations. The proposed methodology is developed based on the following five developmental procedures, including: (1) specification of demand...