نتایج جستجو برای: freight consolidation and containerization problem

تعداد نتایج: 16919221  

2013
Rinaldo A. Cavalcante Matthew J. Roorda

Freight transport is the output of an economic market, which converts commodity flows into vehicle flows. Interactions in this market influence vehicle flows and since freight market characteristics (product differentiation and economies of scale/scope) violate perfect competition conditions, the output of this market cannot be predicted directly, unless these interactions are represented in th...

ژورنال: Journal of Railway Research 2017
Christogiannis, Evangelos, Pyrgidis, Christos,

By using mathematical models, this paper will compare the economic profitability of a heavy load freight corridor (30 t per axle) with a conventional freight-dedicated railway corridor (22.5 t per axle). This comparison concerns the construction and operation of a new, single-track of normal gauge, exclusively for freight traffic, and takes into account various demand values of freight volume (...

Journal: :SSRN Electronic Journal 2014

Journal: :Scientia Iranica 2022

The pick-up and delivery routing problem has received special attention thanks to its application urban freight distribution processes. However, due the multiple levels involved in those processes, modeling analyzing networks contexts are complex tasks. As a result, efficient robust solution methods should be proposed according dynamic uncertain conditions that characterize this type of problem...

2011
Jörg Leukel Stefan Kirn

Determining optimal routes for given freight is a core decision in logistics. In intermodal logistics, freight routing has to consider the interfaces between different modes of transportation, such as hand-over offsets, load changes, and organizational procedures. We study this problem from the perspective of Service-Oriented Computing (SOC). We (1) propose representing intermodal transport sys...

2010
M. Aronsson P. Kreuger J. Gjerdrum

This paper presents a MIP model for a locomotive routing and scheduling problem from the domain of freight railways. Innovative features of the model include the use of binary variables to separate the integer and continuous parts of the problem to maintain the flow character of the integer part of the problem. The model has been developed with, and has found practical Green Cargo, the largest ...

Journal: :Multidisciplinary Aspects of Production Engineering 2020

2005
MARC IVALDI GERARD MCCULLOUGH

Since the publication by Williamson (1968) of his seminal paper on antitrust there has been a growing recognition by regulators of the need to assess tradeoffs between merger-related efficiency gains and merger-induced increases in market power. This paper addresses that need by presenting a structural econometric model of recent mergers in the U.S. rail industry. The paper extends the structur...

2012
M. Winkenbach P. R. Kleindorfer B. Lemarié C. Levêque A. Roset S. Spinler

In this work we present a large scale static, deterministic mixed inter linear programming model (MIP) solving an integrated location-routing problem (LRP) in the context of urban logistics services (ULS). We aim at determining a cost optimal infrastructure and fleet design for an urban consolidation and transportation network. The model is meant to quantitatively evaluate potential strategic m...

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