نتایج جستجو برای: freight transportation

تعداد نتایج: 60399  

Journal: :international journal of industrial engineering and productional research- 0
zohreh zahedian kargar street, above the jalale-ale-ahmad mohammad mahdi nasiri

in this paper, we develop a freight transportation model for railway network considering hazmat transportation issue. in the transportation system considered, different customers can request for carrying hazmat and non- hazmat boxes. it is assumed that the sequence of the trains in the network is known. the objective is assigning the non-hazmat boxes and hazmat boxes to wagons of the trains so ...

Freight and passenger transport are two main functions of the infrastructure and transportation networks in each country. It is required to efficiently utilize the transportation infrastructures to increase transportation-related performance measures. In this study, data envelopment analysis (DEA) model is used to evaluate performance of the Iranian provinces from the freight and passenger tran...

2014

The purpose of this paper is to provide an overview of how the intelligent transportation system (ITS) supports freight transportation operations. A study of the literature on transportation information and communication technology (ICT) and intelligent (or smart) transportation systems has been conducted. Documents of more than 60 companies producing or using intelligent transportation technol...

2000
FEI JIANG PAUL JOHNSON

Considerably less research has been done on modeling freight demand with disaggregate discrete models than on modeling passenger demand. The principal reason for this imbalance is the lack of freight demand data. Freight demand characteristics are expensive to obtain and are sometimes confidential. This paper analyzes the freight demand characteristics that drive modal choice by means of a larg...

ژورنال: Journal of Railway Research 2018
Ahadi , Hamid Reza , Torabian , Golshan ,

Currently, road transportation is the main mode of freight transit in Iran and about 90% of freight transit is done through this mode of transportation which is not in line with the transportation policies that based on them 70% of the freight transit should be done through road transportation and 30% of the freight transit should be done through rail transportation. However, Iran's railway net...

2012
Bo Zhang Tao Yao Terry L. Friesz Hongcheng Liu

In this paper we propose a dynamic Stackelberg game-theoretic model for urban freight transportation planning which is able to characterize the interaction between freight and personal transportation in an urban area. The problem is formulated as a bi-level dynamic mathematical program with equilibrium constraints (MPEC) which belongs to a class of computationally challenging problems. The lowe...

2003
P. J. Sánchez D. Ferrin Jinghua Xu Kathleen L. Hancock Frank Southworth

The paper describes a prototype Dynamic Freight Traffic Simulation model called DyFTS, constructed for studying the effects of highly developed information technologies and logistic strategies on freight transportation. DyFTS is designed as a highly adaptable system that can be easily embedded into a more comprehensive transportation simulation model. Various decision-making processes are formu...

The locomotive assignment and the freight train scheduling are important problems in railway transportation. Freight cars are coupled to form a freight rake. The freight rake becomes a train when a locomotive is coupled to it. The locomotive assignment problem assigns locomotives to a set of freight rakes in a way that, with minimum locomotive deadheading time, rake coupling delay and locomotiv...

2013
P. Najaf S. Famili

Road freight transportation between provinces of a country has an important effect on the traffic flow of intercity transportation networks. Therefore, an accurate estimation of the road freight transportation for provinces of a country is so crucial to improve the rural traffic operation in a largescale management. Accordingly, the focused case study database in this research is the informatio...

2004
ARUN CHATTERJEE

ITE JOURNAL / DECEMBER 2004 INTRODUCTION AND SCOPE OF PAPER Planning for freight transportation in urban areas is not performed as commonly or as thoroughly as planning for passenger transportation, despite the fact that one of the seven factors for metropolitan planning specified in the federal legislation (the Transportation Equity Act for the 21st Century) mentions freight. Most planners and...

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