نتایج جستجو برای: freight car allocation
تعداد نتایج: 147175 فیلتر نتایج به سال:
The aim of the System Dynamics Model ESCOT is to describe a path towards a sustainable transport system in Germany and to assess its economic impacts. ESCOT was developed within the environmentally sustainable transport (EST) project of the OECD that was designed to consider the ecological and technical aspects of a transition towards sustainable transportation. ESCOT comprises five models: the...
High-speed capsular vehicles are firstly suggested as an idea by Elon Musk of Tesla Company. Unlike conventional high-speed trains, individual vessels carrying passengers and freight with the expected maximum speed near 1200 [km/h] in a near-vacuum tunnel. More vehicle speed, dispatch, position control operational aspect over connected trains. This numerical study investigation evaluate analyze...
The land-transportation cannot meet its demands anymore. Jammed highways and cities, dangerous emissions, omnipresent traffic accidents, delays, expensive railways.
 Solutions are being sought to transfer a large part of passenger- especially freight-traffic (high-speed) rail the efforts shifting towards electromobility, car-sharing, 5G-connectivity, autonomous ride, MaaS-transport-coordin...
The paper addresses the scheduled service network design problem for freight rail transportation. The proposed model integrates service selection and scheduling, car classification and blocking, train make up, and routing of time-dependent customer shipments, based on a cyclic three-layer space-time network representation of the associated operations and decisions, their relations and time dime...
1366-5545/$ see front matter 2011 Elsevier Ltd doi:10.1016/j.tre.2011.07.004 ⇑ Corresponding author. Tel.: +1 313 577 3872; fa E-mail addresses: [email protected] (F. Azad 1 Bisignani, G., Plenary speech, IATA World Air Car The route planning of time-sensitive air-cargo is becoming more important with the growing air-network congestion and delays. We consider a freight forwarder’s routing of ...
Authority often relies on information whose collection and transmission by subordinates its very exercise discourages. In this paper, we study how the allocation of authority affects the production, transmission, and strategic use of subjective intelligence relying on exhaustive data on credit decisions. Exploiting the exogenous variation in branch-headquarters distance we find that the center ...
For the control design of freight trains, estimation in-train forces is crucial to avoid safety issues caused by possible failure car couplers under excessive stress. However, and relative positions adjacent train cars are not directly measurable. To address this issue, paper designs estimators using only locomotive-based measurements. Using multi-point model, a cascade structure robust sliding...
Purpose: To analyze and compare the requirements of State Standards Russia, countries Europe North America to assessment dynamic qualities freight cars, their impact on railway track. Methods: Review analysis various conditions pursue testing cars a track, indicator permissible values made it possible form most representative calculated cases for simulation crew motion along construction tracks...
In this paper, we present a mathematical model to design the service network, that is the set of origin-destination connections. The resulting model considers both full and empty freight car movements, and takes into account handling costs. More specifically, the model suggests the services to provide, as well as the number of trains and the number and type of cars traveling on each connection....
Authority often relies on information whose collection and transmission by subordinates its very exercise discourages. In this paper, we study how the allocation of authority affects the production, transmission, and strategic use of subjective intelligence relying on exhaustive data on credit decisions. Exploiting the exogenous variation in branch-headquarters distance we find that the center ...
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