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 20 of 185 for “"Transportation network"”.
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CONTAINER TRANSPORTATION NETWORK MODELING AND OPTIMIZATION
… ship route schedule design, and liner shipping network design. These decision problems focus on different aspects of liner shipping services with different inputs and outputs. However, their common objective is to minimize the total cost, or, to maximize the total profit, for liner shipping …
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An analysis of international transportation network
This thesis discusses a network design problem based on a case study with a footwear company, which intends to minimize total supply chain costs by establishing a distribution network which bypasses its primary distribution center (DC). Through the new network, called the DC bypass network, the …
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The plant cytoskeleton as a transportation network
… dynamically rearranging, and interconnected networks. The cytoskeleton serves a multitude of cellular functions which further depend on the cell context. In animal cells, the cytoskeleton prominently shapes the cell's mechanical properties and movement. In plant cells, in contrast, the …
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Robust transportation network design under user equilibrium
We address the problem of designing a transportation network in the presence of demand uncertainty, multiple origin-destination pairs and a budget constraint for the overall construction cost, under the behavioral assumption that travelers optimize their own travel costs (i.e., the …
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Earthquake loss estimation including transportation network damage
… emphasis on the reduced functionality of the transportation infrastructure. The methodology integrates variables that were previously considered exogenous to the transportation system, through models for reduced industrial production capacity, and damage to lifelines, residential clusters and …
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Game Theory Approach to Transportation Network Vulnerability Measurement
<p>The vulnerability of a transportation network is strongly correlated with the ability of the network to withstand shocks and disruptions. A robust network with strategic redundancy allows for the redistribution or reassignment of traffic without unduly compromising system performance. As such, …
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Operational Innovations to Improve Malawi’s HIV Sample Transportation Network
… to its citizens through a centralized laboratory network. Diagnostic samples are collected from patients at remote, point-of-care health facilities and diagnostic tests are performed at centralized laboratories. Sample transportation (ST) systems within these networks are crucial for timely …
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Designing a transportation network for Mendoza, Argentina : a strategic approach
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1997.
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Estimation of run times in a freight rail transportation network
The objective of this thesis is to improve the accuracy of individual freight train run time predictions defined as the time between departure from an origin node to arrival at a destination node not including yard time. A correlation analysis is conducted to identify explanatory variables that …
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Resilience of transportation network during post-earthquake emergency response and recovery stages
… infrastructure damages and significantly disrupt transportation networks. Disrupted transportation networks resulting from damaged bridges or debris may cause delays on emergency response activities and impact traffic efficiency and safety during the post-earthquake recovery stage. A functioning …
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On Capacity Estimation and Capacity-Safety Relationship in an Air Transportation Network
Air transportation is a complex system of interlinked distributed networks in which different components have their own constraints and performance measures. For example, an airport network in which each airport is treated as a node and models the departures/arrivals of flights as links considers …
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Realtime Vehicle Route Optimisation via DQN for Sustainable and Resilient Urban Transportation Network
… most serious contemporary city issues for urban transportation network as it leads to unnecessary high energy consumption, air pollution and extra travelling time. During this decade, many optimization algorithms have been designed to achieve the optimal usage of existing roadway capacity in …
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Regional earthquake loss estimation : role of transportation network, sensitivity and uncertainty, and risk mitigation
… national scales and the mediating role of the transportation network. In an application to the Central U.S. under threat from earthquakes from the New Madrid Seismic Zone, we (1) evaluate regional and national losses from scenario earthquakes, (2) quantify uncertainty on the losses through loss …
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The Potential for Using Transportation Network Companies as an Alternative to Transit Station Parking
… the process. However, the widespread adoption of Transportation Network Companies (TNCs) like Uber and Lyft over the past several years presents a potential opportunity to change the tradeoff transit agencies face between P+R or TOD. This thesis explores the potential for transit agencies to …
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Modeling inundation impacts on transportation network performance : a GIS and four-step transportation modeling analysis
… affects the availability and quality of network assets (i.e. Transportation Supply) and inhabitable land, which produces and attracts transportation users (i.e. Demand). In this thesis, I apply an altered four-step transportation modeling method to allow for the analysis of impacts in a …
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Integrating Pro-Environmental Behavior with Transportation Network Modeling: User and System Level Strategies, Implementation, and Evaluation
… vehicles (LDV) are responsible for 61\% of all transportation related energy consumption in 2012, which is equivalent to 8.4 million barrels of oil (fossil fuel) per day. The carbon content in fossil fuels is the primary source of GHG emissions that links to the challenge associated with climate …
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An Integrated Interregional Input -Output and Transportation Network Model for Assessing Economic Impacts of Unexpected Events
… relationships, and the corresponding transportation network flows is formulated and implemented for assessing the economic impacts from an unexpected event. The Integrated Commodity Flow Model (ICFM) integrates a transportation network model with a regional input-output model. The …
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