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 28 for “"Traffic signs"”.
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Assessment of Driver's Attention to Traffic Signs through Analysis of Gaze and Driving Sequences
… observant drivers are in seeing and recognizing traffic signs. In this contribution, we present a system considering the location where a driver is looking (points of gaze) as a factor to determine that whether the driver has seen a sign. Our system detects and classifies traffic signs inside the …
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Image-based recognition, 3D localization, and retro-reflectivity evaluation of high-quantity low-cost roadway assets for enhanced condition assessment
… of high-quantity low-cost roadway assets such as traffic signs, guardrails, and pavement markings requires frequent reporting on location and up-to-date status of these assets. Today, most Departments of Transportation (DOTs) in the US collect data using camera-mounted vehicles to filter, …
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Adaptive traffic sign recognition
… the system to the special characteristics of the signs in different countries. The system is to be used as a vehicle mounted driver assistance system. Autonomous infrastructure detection has to be international in our globalised world. Many publications concerning the detection and recognition of …
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Evaluation of the effect of Clearview font and retro-reflective sheeting materials on legibility distance
… increased significantly along with the number of traffic signs. The median age of the drivers has also increased due to the aging population. Traffic signs provide a plethora of necessary information - directions, guidance, warnings, regulations, and recreation. With today's congestion and higher …
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Parametric Design, Modeling, and Optical Evaluation of Retroreflective Prismatic Structures
… various applications such as measurement tools, traffic signs and automotive rear and side lighting. This thesis aims to model, analyze, fabricate and study a novel type of IC retroreflectors called right triangular prism (RTP). A parametric approach is used to model existing IC geometries from a …
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Gaze-Aware Driver Maneuver Prediction Using Object Detection and Sequential Deep Learning Models for Advanced Driver Assistance Systems
… whether incorporating driver attention to traffic-relevant elements, specifically, traffic signs and lights, can improve the accuracy and timeliness of maneuver predictions. Object detection was performed using custom-trained YOLOv11 models, whose outputs were aligned with gaze data to …
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A Method for Image Classification Using Low-Precision Analog Computing Arrays
… problems (MNIST hand-written digits and traffic signs). Software simulations evaluate the methods under various defined computation faults. A model-free closed-loop technique is shown to compensate for rather serious computation errors without the need for explicit error quantification. …
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Leveraging Autonomous Vehicles In Transportation Asset Management
Traffic sign inventory generation is important for transportation asset management because accurate sign records support roadway safety, maintenance planning, and asset-level decision making. However, current field inventory, image-log, street-view, mobile mapping, and computer vision methods may …
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The development of a thermoplastic road marking material standard
… road markings, especially roads carrying high traffic volumes, would lead to chaos and accidents resulting in injuries and loss of life. The road authorities need to ensure that all signage is well maintained and conforms to the Southern African Development Community Road Traffic Signs Manuals …
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Unconstrained Road Sign Recognition
There are many types of road signs, each of which carries a different meaning and function: some signs regulate traffic, others indicate the state of the road or guide and warn drivers and pedestrians. Existent image-based road sign recognition systems work well under ideal conditions, but …
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Validation of EcoRouting and an Analysis of the Impact of Traffic on Route Choice
… on route distance, speed limits, road grades, traffic signs, driver aggression and the powertrain. There are three major objectives in this thesis: Developing the automation methodology for the determination of EcoRoute for use in on-board applications, validating the EcoRouting methodology on …
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The influence of child safety warning signs on vehicle speeds
1 PDF file (ix, 117 pages)
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Réponse au stress et comportements routiers à risque sous l’effet de l’alcool chez de jeunes conducteurs
… consumption (i.e., speeding and failure to obey traffic signs during the first trip, deciding to drive a second trip under the influence of alcohol) were observed by means of a driving simulator. Stress response was measured using a standardized stress-inducing task, and saliva cortisol samples …
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Characteristics and contributory causes related to large truck crashes (phase-II) - all crashes
… and environment-related contributory causes, traffic-control type, truck-maneuver, crash location, speed limit, light and weather conditions, time of day, functional class, lane class, and Average Annual Daily Traffic (AADT). Other variables such as age of truck driver, day of the week, gender …
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Driver Response to Simulated Intersections: An Analysis of Workload-Related Variables
… which varied according to types of traffic control signs and signals. Individual workload was assessed in three categories of response: performance, subjective, and physiological. A MANOVA was performed on six dependent variables in the 3 (age) by 2 (gender) design. Results indicate …
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Decentralized graph-based multi-agent reinforcement learning for traffic signal optimization
… required to manage stochastic and heterogeneous traffic conditions. This dissertation develops a decentralized graph-based multi-agent reinforcement learning (DGMARL) framework for adaptive traffic signal control. The framework advances the state of the art by (i) embedding operational …
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