We introduce the Stochastic multistage fixed charge transportation problem in which a producer has to ship an uncertain load to a customer within a deadline. At each time period, a fixed transportation price can be paid to buy a transportation capacity. If the transportation capacity is used, the supplier also pays an uncertain unit transportation price. A unit inventory cost is charged for the...

The monitoring of transportation infrastructure health is currently reliant on transportation maintenance teams. Scheduled and periodic inspections of most infrastructures are performed by manual and visual operations, which are generally time consuming and costly procedures. The use of fiber-optic sensor technology makes it possible to realize continuous, real-time and automatic health monitor...

BACKGROUND Pregnancy is characterised by large weight gain over a short period, and often a notable change in mode of transportation. This makes pregnancy suitable for examining the plausible, but in the scientific literature still unclear, association between active transportation and weight gain. We hypothesize that women continuing an active mode of transportation to work or school from pre-...

The fixed charge transportation problem (FCTP) is a deployment of the classical transportation problem in which a fixed cost is incurred, independent of the amount transported, along with a variable cost that is proportional to the amount shipped. Since the problem is considered as an NP-hard, the computational time grows exponentially as the size of the problem increases. In this pape...

Cross-docking is a logistic concept, which plays an important role in supply chain management by decreasing inventory holding, order packing, transportation costs and delivery time. Paying attention to these concerns, and importance of the congestion in cross docks, we present a mixed-integer model to optimize the location and design of cross docks at the same time to minimize the total transpo...

Despite the obstacles caused by the data constraints and diversity of industrial structure, analysis of the service sector is growing in importance. Focusing on one service industry in particular—freight transportation—a research team led by Senior Fellow Yoko Konishi set about analyzing the time cost as well as the monetary cost—cost of gasoline, expressway tolls, drivers' wages, and so forth—...

The purpose of this study is to find a proper prehospital transportation scenario planning of an emergency medical service (EMS) system for possible burdensome casualties resulting from extreme climate events. This project focuses on one of the worst natural catastrophic events in Taiwan, the 88 Wind-caused Disasters, caused by the Typhoon Morakot; the case of the EMS transportation in the Xiao...

— In today’s world, wireless mobile communications devices are creating new dimensions of interconnectedness between people, places, and urban infrastructure. This ubiquitous connectivity within the environment can be observed and interpreted in real-time through aggregate records collected from communication and transportation networks. The real-time acquisition can regard: traces of informati...

As the automotive industry has been striving to enhance its efficiency, competitiveness, and sustainability, great focus is often placed on opportunities for improving its supply chain operations. We study the effect of introducing multiple modes of transportation in an industry-motivated production and transportation problem involving short-term automotive supply chain planning. We consider mu...

Current means of transportation for daily commuting are reaching their limits during peak travel times, which results in environmental issues due to wasted fuel and loss of time and money. A study commissioned by the European Union entitled ‘Out of the Box’ considers a personal aerial transportation system (PATS) as a viable alternative for transportation to and from work. The study also acknow...