The advantages, disadvantages, and issues involved in the panel analysis of travel behavior are discussed. Increased statistical efficiency, possibility of improved prediction, and the ability to observe changes and examine behavioral dynamics, are among the advantages panel data offer. Their disadvantages, on the other hand, stem from the added biases and costs of panel survey, and increased c...

Anhydrous sodium acetate will serve as the catalyst with maleic, chloro-maleic, and methylglutaconic anhydrides, giving yields of 0.54, 0.22, and 1.02 moles CO2 per mole of anhydride. The products of all these reactions are black and brown-black, are soluble in acetone, acetophenone, dioxane, and aqueous alkali and are insoluble in benzene, toluene, ether, chloroform and carbon tetrachloride, a...

REGIONAL STRATEGIC TRANSPORTATION PLANNING AS A CLIOS JOSEPH M. SUSSMAN SGOURIS SGOURIDIS

This paper studies a real-world problem arising in the area of motorail transportation. The considered problem deals with the loading of cars and motorcycles onto motorail wagons under realistic technical and legal constraints. The load planning problem, introduced as motorail transportation problem (MTP), occurs during the booking process and afterwards during the loading process at motorail t...

We consider a fundamental problem, called QoS-aware Multicommodity Flow, for assessing robustness in transportation planning. It constitutes a natural generalization of the weighted multicommodity ow problem, where the demands and commodity values are elastic to the Quality-of-Service (QoS) characteristics of the underlying network. The problem is also fundamental in other domains beyond transp...

A freight forwarder may consolidate its goods transportations in order to achieve a more efficient operation. When goods transportations are consolidated, they may reduce operational costs, e.g. labor and fuel. This can be further improved if a number of freight forwarders cooperate and consolidate their collective goods transportations, i.e. it is a cooperation between competitors, a coopetiti...

Ensuring that the daily movement of millions of passengers and tons of goods in the Metropolitan Region of Rio de Janeiro-with a population of more than 10 million peoplecan be satisfactorily and safely accomplished is a complex task. It involves several transportation modes; federal, state, and local agencies; public and private operators; and skilled personnel. Very often parts of the system ...

Very few research efforts have been spent on the coordination of plans and operations of independent carriers in an intermodal transportation chain. The impact of this lack of collaboration and coordination is shown in an accordant scenario and first ideas are presented to overcome this situation following the principles of decentralized planning.