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.
Results
Showing 1 to 20 of 429 for “"transportation systems"”.
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Merging in automated transportation systems.
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1968.
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Urban transportation systems policy analysis
… understanding of the complexities of urban systems. The main objective of this research project is to establish a systematic framework in order that planners can analyze and understand the implications that public policies have on urban development and transportation planning perspectives. …
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Crash severity modeling in transportation systems
… the reality of vehicle movement in networked systems, the assumption of independence of crash incidence is not likely valid. For instance, spatial and temporal autocorrelations are important sources of dependency among observations that may bias estimates if not considered in the modeling …
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Strategic decision analysis for transportation systems
… analysis methods of capital investment in transportation systems. The transportation system is a fundamental infrastructure, and requires strategic thinking in making decisions on its projects. The current valuation methods, however, do not reflect the strategic value of a project. We …
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Methodology for Quantifying Resiliency of Transportation Systems
… the method toward four complex, real world, transportation systems undergoing disruptions. These case studies consisted of six maritime port, three airports, two localized refueling systems, and the Colorado Department of Transportation’s cyber network. Each system had a measurable drop in …
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Routing algorithms for optimisation of transportation systems
… started using bicycles as an alternative transportation mode and face challenges to efficiently satisfy their customers and employees needs. Large cities with uphill roads require transportation systems to take into account the energy needed by cyclists to move. The load carried on …
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Agile load transportation systems using aerial robots
… scale quadrotors. First, detailed models of such transportation system are derived. These models include nonlinear models of a quadrotor, a model of a quadrotor carrying a fixed load and a model of a quadrotor carrying a suspended load. Second, the problem of quadrotor stabilization and trajectory …
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Intelligent Transportation Systems: A Multilevel Policy Network
… and global cooperation to promote Intelligent Transportation Systems (ITS). It is aimed at exploring the historical and structural features of the ITS policy network, and evaluating its roles in the policy process. Until now, the network literature has barely examined the full arrays of …
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Essays on the Economic Analysis of Transportation Systems
… of four essays on the economic analysis of transportation systems. In the first chapter, the conventional disaggregate travel demand model, a probability model for the modeling of multiple modes, generally called random utility maximization (RUM), is expanded to a model of count of mode …
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An institutional deployment framework for intelligent transportation systems
… social conditions. The concept of intelligent transportation systems (ITS), which is defined as the application of computing and electronics technologies to transportation, offers potential for alleviating the negative effects of traffic congestion. These negative effects include impacts on …
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Application of Deep Learning in Intelligent Transportation Systems
… number of vehicles engender several issues in transportation systems, which in turn call for an intelligent and cost-effective approach to resolve the problems in an efficient manner. A cost-effective approach for improving and optimizing transportation-related problems is to unlock hidden …
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Quantifying the Safety Impacts of Intelligent Transportation Systems
… is to capture the benefits of Intelligent Transportation Systems (ITS) on safety. The specific ITS component that is examined in more detail is traffic signal coordination. The model was tested in a micro-simulation environment using INTEGRATION traffic simulation model as well as in a …
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Integrated Model to Plan Advanced Public Transportation Systems
… of this study is to develop an integrated public transportation planning framework to evaluate and plan Advanced Public Transportation Systems (APTS). With this purpose, a systems approach point of view is adopted to study the influence of new APTS technology in supply and demand transit …
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Risk Assessment and Management of Petroleum Transportation Systems Operations
Petroleum Transportation Systems (PTSs) have a significant impact on the flow of crude oil within a Petroleum Supply Chain (PSC), due to the great demand on this natural product. Such systems are used for safe movement of crude and/or refined products from starting points (i.e. production sites or …
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Distribution Planning for Rail and Truck Freight Transportation Systems
Rail and truck freight transportation systems provide vital logistics services today. Rail systems are generally used to transport heavy and bulky commodities over long distances, while trucks tend to provide fast and flexible service for small and high-value products. In this dissertation, we …
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Leveraging Machine Learning Techniques in Power and Transportation Systems
… tasks, especially in complex cyber physical systems such as power and transportation systems. To handle the increasing scale and complexity in power systems, we propose a novel and efficient method to solve the Optimal Power Flow (OPF) problems, by decomposing the entire system into multiple …
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FRAMEWORK FOR INCORPORATING NETWORK CONNECTIVITY IN TRANSPORTATION SYSTEMS EVALUATION
In transportation investment evaluation, agencies often do not consider the impact of proposed projects in terms of the increased connectivity of the parent network. Thus, agencies may be inadvertently omitting a key and critical goal of transportation investment evaluation and decision making, …
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Sustainability analysis in integrated inventory control and transportation systems
… chains, such as inventory holding, freight transportation, and warehousing activities, this dissertation models and analyzes four integrated inventory control and transportation problems that account for economic and environmental aspects of a supply chain agents related decisions.</p> …
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Fusion-layer-based machine vision for intelligent transportation systems/
Environment understanding technology is very vital for intelligent vehicles that are expected to automatically respond to fast changing environment and dangerous situations. To obtain perception abilities, we should automatically detect static and dynamic obstacles, and obtain their related …
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