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 59 for “"Transportation--Research"”.
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A review of techniques in transportation research
Although organized transportation systems are very old indeed s, active research into their operations is relatively new Some of the problems encountered in transportation research are discussed along with methods for their solution,. The Hitchcock distribution problem is discussed and a sample …
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The role of research in improving infrastructure : an analysis of U.S. transportation research & development
… services. In the United States, the transportation system, which is widely considered to be the nation's largest infrastructure system, provides a case study of the complex investment, design, and operations-related problems of infrastructure service provision. An effective and …
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Development and Evaluation of a Simulation System Based Upon Standard Pedestrian Thoroughfare Methodologies
… the Highway Capacity Manual 2000 (HCM) (Transportation Research Board, National Research Council [TRB], 2000a) methodologies into a ProModel simulation and then compares and contrasts the results of the HCM calculations with the ProModel simulation.
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A two-dimensional transfer model
… This work was conducted for the U. S. Army Transportation Research Command, Fort Eustis, Virginia, 1961, Task 9R38-11-009-02.
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Integration of GIS and machine learning techniques to investigate the impact of environmental contexts on travel modes
… of physical activity, a growing body of research has adopted the definition of active travel modes. Active travel modes have made a great contribution to overall physical activity and, therefore, it is important to understand the active travels associated with environmental facilitators …
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Harnessing the Power of Self-Training for Gaze Point Estimation in Dual Camera Transportation Datasets
… estimating gaze points in dual camera transportation datasets. Traditional methods for gaze point estimation are dependent on large amounts of labeled data, which can be both expensive and time-consuming to collect. Additionally, alignment and calibration of the two camera views present …
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Calibration of Snowmaking Equipment for Efficient Use on Virginia's Smart Road
… by early 2000, is a test bed for numerous research activities including snow and ice control, remote sensor testing, snow removal management, safety and human factors, and vehicle dynamics. An all-weather testing system will feature 75 automated snowmaking towers. In order to provide timely …
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Travel Information Search on the Internet: An Exploratory Study
"This research used a travel planning exercise to explore the travel information search on the Internet. The results showed that travelers use a variety of web sites to search for travel information and they have different semantic mental models regarding the same travel destination. Accordingly, …
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Interrelationships Between Urban Travel and Other Infrastructure
This dissertation advances the science of how transportation interacts with other urban systems by demonstrating how alternative data sources can reveal mobility patterns and human activity in near real time. Traditional transportation research depends on household surveys and administrative …
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Using Augmented Reality For Studying Left Turn Maneuver At Un-signalized Intersection And Horizontal Visibility Blockage
… be used as a surrogate to the field-testing for transportation research.
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Deidentification of Face Videos in Naturalistic Driving Scenarios
… data has become integral to advancing scientific research, but it introduces challenges related to safeguarding personally identifiable information (PII). This thesis addresses the specific problem of sharing drivers' face videos for transportation research while ensuring privacy protection. To …
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The history & organization of the state highway departments of the United States
Thesis (B.S.)--Michigan State College of Agriculture and Applied Science, 1930
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Dual-Interval Optimization Modeling for the Planning of Natural Gas Pipeline Systems
… gas (NG) pipeline network, a major mode of transportation, requires optimized operations and management in order to ensure stable and efficient gas supplies. To provide such optimal solutions, pipeline systems modeling is a widely used method. The interactions among upstream, midstream, and …
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Computerized Ultrasonic Raytracing Model for C-scans of Solid Steel Bridge Pins
… an ultrasonic C-scanning system for the Virginia Transportation Research Council (VTRC). The report discusses the reasons behind the development of the raytrace model, as well as specifications of the model, the input conditions, and the data output and visualization. The model uses as input, …
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Real-Time Advanced Warning and Traffic Control Systems for Work Zones: Examination of Requirements and Issues
… carried out at the Virginia Tech Center for Transportation Research identified traffic safety, work zone safety and traffic control, trucking issues, and intercity traveler information needs as important issues that deserve attention on the I-81 Corridor in Virginia. Analysis of work zone …
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Evaluating the Effectiveness of Electronic Stability Systems in Reducing Truck Rollovers
The objective of this research is to develop a customized hardware-in-the-loop system that is used to test Electronic Stability Program (ESP) systems to prevent heavy truck rollovers when navigating horizontal roadway curves. While most of the published literature on electronic stability control …
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Step By Step: Suburban Active Transportation Planning in Spring Hill, Tennessee
… land uses, and sprawling development. Active Transportation (AT), defined as non-motorized travel modes such as walking and cycling, has the potential to provide suburban residents with alternative mobility options. In 2015, Spring Hill, Tennessee, a city with suburban form and no dense urban …
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A Method to Enhance the Performance of Synthetic Origin-Destination (O-D) Trip Table Estimation Models
… been developed in the past. The focus of this research was on two of these models, namely, The Highway Emulator (THE) and the Linear Programming (LP) models. These models use target/seed tables for guiding the modeled trip tables. In an earlier research effort conducted by Virginia Tech Center …
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An Evaluation of Assignment Algorithms and Post-Processing Techniques for Travel Demand Forecast Models
The purpose of this research project was to evaluate the techniques outlined in the National Cooperative Highway Research Program Technical Report 255 Highway Traffic Data for Urbanized Area Project Planning and Design (NCHRP-255), published in 1982 by the Transportation Research Board. This …
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A computer simulation model to predict airport capacity enhancements
The ever increasing demand on the air transportation system is causing a lot of congestion and delays, leading to large monetary losses and passenger inconvenience. This has prompted the development of many analysis tools to help the understanding of the airport system where some improvements could …
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