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 350 for “"Roadway"”.
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IRIS: Intelligent Roadway Image Segmentation
The problem of roadway navigation and obstacle avoidance for unmanned ground vehicles has typically needed very expensive sensing to operate properly. To reduce the cost of sensing, it is proposed that an algorithm be developed that uses a single visual camera to image the roadway, determine where …
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Improvement of railway roadway and track
Made available in DSpace on 2017-11-30T22:11:08Z (GMT). No. of bitstreams: 2 5994226.pdf: 1109996 bytes, checksum: e27bf569561b4125e339319e9f9e8fc6 (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1916
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A Windows-based roadway maintenance management system
… also necessary; The development of a prototype roadway MMS is presented in this thesis. The basic information such as the names of the personnel, street, equipment and material, the wage rates, the lengths of the street segments, the maintenance activities etc. need to be entered into the system …
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Data-Driven Sustainability Assessment in Roadway Infrastructure Construction
… and evaluate the sustainability performance of roadway infrastructure. However, the existing literature lacks studies that use roadway construction data to evaluate the state of practice and establish performance benchmarks. To bridge the research gaps, this dissertation collected, organized, …
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Effect of roadway frictions on vehicle operating characteristics
Thesis (M.S.)--Michigan State University of Agriculture and Applied Science. Dept. of Civil Engineering, 1960
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Predicting Air Quality Near Roadway Intersections Through The Applicat
… concentrations of carbon monoxide (CO) near roadway intersections. This model uses steady-state and macroscopic methods to model the physical phenomena (e.g., emission rates, atmospheric dispersion, etc.) occurring at intersections. These methods are not straightforward and unintuitive for …
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A STOCHASTIC APPROACH TO SAFETY MANAGEMENT OF ROADWAY SEGMENT
The targets of the thesis are road safety analysis based on crash event and road features for the benefit cost analysis where a treatment has to be applied. There is a growing attention to road safety in Europe. New regulations applied on TERN network push Agencies to introduce new methodological …
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New priorities for old roads : re-thinking roadway preservation
Most of the roads built over the last century in the US were built assuming that efficient mobility for drivers was most important without considering impacts to the natural or built environment. Urban neighborhoods were severed, ecologically sensitive areas were disrupted, and pedestrian, bicycle …
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Framework for Rating Roadway Assets at the Corridor Level
The United States relies on its vast network of roadways to transport people, goods, and services across the nation. These roads need to be maintained to an acceptable level in order to effectively provide a safe, reliable, and efficient road. The use of infrastructure management systems (IMS) has …
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Characterizing the Dynamics of Vulnerability for Roadway Infrastructure Systems
… events. A number of existing studies address roadway networks where researchers have characterized the robustness and vulnerability of roadways to earthquakes, floods, and targeted attacks. However, extreme events with infrequent return periods are not very likely to occur in a 50-60 year …
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A comprehensive environmental and economic sustainability assessment of roadway drainage systems
The primary goal of roadway drainage systems is to quickly remove water from the roadway area to keep driving lanes safe; therefore, these systems are designed to quickly convey water that enters as runoff. However, this runoff carries pollutants (largely originating from vehicles) that travel …
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A roadway bridge across the Merrimack River between Groveland and Haverhill
Thesis: B.S., Massachusetts Institute of Technology, Department of Civil Engineering, 1877
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Unveiling Roadway Network Safety: Application of Statistical Physics to Crowdsourced Velocity Data
… traffic safety poses stark realities. In 2022, roadway incidents in the U.S. claimed over 38,824 lives, surpassing the fatality rate of the COVID-19 pandemic within the country. Despite these alarming statistics, understanding the overarching patterns of traffic safety presents a complex …
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A Decison Support System for Multi-Objective Multi-Asset Roadway Asset Management
… optimal techniques for maintenance of multiple roadway asset items while taking into account time, cost, level of service and environmental impacts. Therefore, the goal is to answer what are the optimal combinations of maintenance techniques for roadway assets while more than one objective is …
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Real-Time Roadway Mapping and Ground Robotic Path Planning Via Unmanned Aircraft
… UAV aerial imagery and aid a UGV in navigating a roadway when the road conditions are not previously known (i.e. disaster situations). Feature detection was used for transform calculation and image warping to create mosaics. A continuous extension using dynamic cropping based on newly gathered …
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Assessment of Improvement in Unpaved Roadway Performance Using 3D Geogrids Under Cyclic Loading
… performance and optimizing the design of unpaved roadways using the results from an extensive cyclic triaxial testing program. Twenty-seven cyclic triaxial tests were performed, consisting of unreinforced (control) and reinforced samples using two types of 3D geogrids: Grid1 and Grid2. The samples …
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Optimal planning of utility relocations and noise barrier approvals for roadway construction projects
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms
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Optimization of lateral position of autonomous truck platoons to improve roadway infrastructure sustainability
The adaptation rate of connected and autonomous vehicle (CAV) technologies correlates with the condition of transportation infrastructure. In fact, an aging and deteriorating infrastructure represents one of the main barriers to advancing CAV technologies. Given that only 41\% of U.S. roads meet …
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Eco-Driving in the Vicinity of Roadway Intersections - Algorithmic Development, Modeling and Testing
Vehicle stops and speed variations account for a large percentage of vehicle fuel losses especially at signalized intersections. Recently, researchers have attempted to develop tools that reduce these losses by capitalizing on traffic signal information received via vehicle connectivity with …
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