Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Train delay"”.
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Railroad decision support tools for track maintenance
… of maintenance and the indirect costs of train delay, disruption risk, and equipment routing. To thoroughly assess these costs, an integrated approach is needed that incorporates degradation modeling, project selection, and maintenance scheduling for the entire track structure. Planning …
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The impact of operational strategies and new technologies on railroad capacity
… are expected to face increasing capacity constraints due to substantial, expected long-term growth in traffic. In order to meet this forecasted demand railroads must efficiently use existing capacity and effectively plan new capacity. Infrastructure to provide this capacity is …
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Simulations of mixed use rail corridors: how infrastructure affects interactions among train types
… particularly in combination, is increasingly straining the capacity of the rail network. In many locations, new railway infrastructure construction will expand capacity to accommodate this growth. In others, new efficiencies may be gained through advances in operational practices and investment …
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A strategic investment decision model for line-haul operations on a developing country railway
… from previous theory on the subject. A train speeds model has been produced which gives results of acceptable accuracy from a simple data input. The train delay model reflects the types of delays found using both low and high, technology trains working methods. The accuracy of both the …
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Influence of track arrangement on expanding rail corridor capacity and operations
… Congestion resulting from these demands strains the capacity of rail lines and jeopardizes the operational fluidity of the rail network, particularly along shared rail corridors. While track construction is just one of many alternatives a railroad may employ in expanding practical capacity …
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Influence of traffic complexity and schedule flexibility on railway classification yard capacity and mainline performance
… developed and used to create a yard capacity constraint involving railcar volume, number of blocks, and number of outbound trains. Traffic complexity and schedule flexibility in hump classification yards were further investigated through the first academic research implementation of YardSYM, a …