نتایج جستجو برای: freight car allocation

تعداد نتایج: 147175  

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...

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...

2006
Kazuya Kawamura Sue McNeil

This paper describes freight movements in the Upper Midwest. The study was undertaken as a part of a multi-state freight study conducted by a team led by the Midwestern Region University Transportation Center at the University of Wisconsin. Using various secondary data sets, the analyses provide a picture of how goods move to, from and within the region to better understand the freight transpor...

2014
V. Cantillo J. Holguin - Veras M. Jaller

Freight transport modelling at interregional scale is relevant for planning issues. However, freight modelling processes are complex because it is not easy to define the relevant variables in the analysis, and to obtain the required information on freight movements through the network. These facts raise the need to adapt the modelling framework to each context. This paper proposes a strategic n...

2013

Pricing schemes have been proposed to address the negative externalities of freight transportation. Literature related to the following pricing strategies are reviewed: pricing programs aimed at changing shipper’s mode choice, and schemes aimed at shifting freight deliveries to off-peak hours. Evidence from empirical and theoretical studies suggests that pricing strategies may have limited effe...

2002
Sungwon Lee

Freight transportation has increased very rapidly in the Republic of Korea owing to economic growth and expanding international trade. However, the freight transport sector in the Republic of Korea has been regarded as inefficient and the inefficiencies can be attributed to many factors, including an outdated regulatory framework, business practices and a lack of proper infrastructure. Since fr...

Journal: :JORS 2010
J. Bauer Tolga Bektas Teodor Gabriel Crainic

Freight transport has undesirable effects on the environment. The most prominent of these is greenhouse gas emissions. Intermodal freight transport, where freight is shipped from origin to destination by a sequence of at least two transportation modes, offers the possibility of shifting freight (either partially or in full) from one mode to another in the hope of reducing the greenhouse emissio...

2003
Pengcheng Zhang Srinivas Peeta Terry Friesz George Mason

Due to similarities in terms of network structure and interactions among them, most infrastructure systems can be viewed as coupled layers of a generalized transportation network in which the passenger, freight, data, water, and energy flows are the commodities in the different layers. The coupling is due to the varying degrees of interactions among these layers in terms of shared physical netw...

2017
Xiaohui Bei Shengyu Zhang

We investigate the ride-sharing assignment problem from an algorithmic resource allocation point of view. Given a number of requests with source and destination locations, and a number of available car locations, the task is to assign cars to requests with two requests sharing one car. We formulate this as a combinatorial optimization problem, and show that it is NP-hard. We then design an appr...

Journal: : 2022

Objective: Identification of transported cargo main indicators, which change affects car component freight railway tariff, and quantitative assessment this effect (on the example coal transportation in Russian Federation). Methods: Econometric modeling, statistical method, analysis, comparative system method. Results: Classification economic changes affect tariff (according to indicators’ group...

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