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 17 of 17 for “"vulnerable road users"”.
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Predictive models for accidents on urban links - A focus on vulnerable road users
… A special focus has been on the accidents of vulnerable road users. The possible improvements investigated have been: a) the use of exposure data for vulnerable road users, b) the use of actual vehicle speeds, c) to separate vehicle accidents into single vehicle and multiple vehicle accidents …
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Evaluating the Impact of Access Density on Pedestrian and Bicycle Safety
… control of vehicular access points along roadways, plays a crucial role in mitigating conflicts between various roadway users. Previous research has established a positive correlation between access density and crash rates, yet limited studies have analyzed its effects on vulnerable road …
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Effectiveness of Automatic Emergency Braking for Protection of Pedestrians and Bicyclists in the U.S.
… 20% were pedestrians, bicyclists, and other vulnerable road users (VRUs) [1]. Vulnerable road users are non-vehicle occupants who, because they are not enclosed in a vehicle, are at higher risk of injury in traffic crashes. While overall traffic fatalities in the US have been decreasing, …
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Towards Safety-Assured Environments of Autonomous Robots via Intent Expressive Autonomy
… communication between an autonomous vehicle and vulnerable road users to identify a feedback module, which increases most legibility, public acceptance and trust in the autonomous vehicle's decision. The initial on-screen study focused on autonomous-vehicle-to-pedestrian communication and was …
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An Investigation of Higher Capacity Urban Freight Vehicles
… in urban environments, including safety of other road users, and reduced manoeuvrability. This thesis discusses technologies for improving safety of vulnerable road users, and frameworks for assessing the maximum size of urban freight vehicles. An overview of the freight industry is provided in …
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Investigating Driver Perceptions of Semi-Autonomous Vehicle Sensing and Response Characteristics
… Infrastructure and Vehicle Recognition, Dynamic Roadway Hazards and Vulnerable Road Users, and Human Interaction and Contextual Cues. Moderate overlap between the first two dimensions suggested that participants viewed certain structured and dynamic roadway features as conceptually similar. …
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Investigation of Crashes Involving Vulnerable Roadway Users Utilizing Geographical Information Systems-Driven Spatio-Temporal Statistical Techniques
… and economic losses in the world. Since vulnerable road users have specific characteristics, they are perceived to have a higher risk of being involved in fatal road crashes. Therefore, it is essential to focus on mitigating the vulnerabilities of roadway users as well as investigating …
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Exploring the Considerations of School Zone Speed Control in Traffic Signal Timing
… and warning drivers to pay more attention to vulnerable road users. This restriction may result in impacts on arterial traffic operations, including speed reduction and potentially additional stops at intersections. Among the various measures implemented for school zone speed control, the …
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Takeover Required! Augmented Reality Head-Up Displays' Ability to Increase Driver Situation Awareness During Takeover Scenarios in Driving Automation Systems
… drivers to temporarily take their attention off-road and en-gage in other tasks. However, there are times when it is important for drivers to immediately take control of the vehicle, if required. To safely take control, drivers must understand what is required of them and have situation awareness …
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Evaluating Factors Contributing to Crash Severity Among Older Drivers: Statistical Modeling and Machine Learning Approaches
Road crashes pose a significant public health issue worldwide, often leading to severe injuries and fatalities. This dissertation embarks on a comprehensive examination of the factors affecting road crash severity, with a special focus on older drivers and the unique challenges introduced by the …
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Study of car-bicycle safety at signalized intersections from multi-aspects
… benefits. However, cyclists are among the most vulnerable road users. Especially at intersections, many bicycles collide with passenger cars despite the control of traffic signals. This thesis focuses on car-bicycle safety at signalized intersections. Various factors contribute to the occurrence …
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Analysis of Association Between Demographic, Socioeconomic, and Built Environment Factors and Pedestrian Safety Using Traditional and AI Approaches
… on motorized transportation elevate risks for vulnerable road users who travel on foot. Creating safe, walkable environments is not only a public health priority but also vital for sustainable urban development. To better understand pedestrian crash risks, this dissertation explores the …
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Development and Validation of Human Body Finite Element Models for Pedestrian Protection
The pedestrian is one of the most vulnerable road users. According to the World Health Organization (WHO), traffic accidents cause about 1.34 million fatalities annually across the world. This is the eighth leading cause of death across all age groups. Among these fatalities, pedestrians represent …
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Characterizing and Comparing the ADS Maneuver Execution Subsystem Performance of Two Vehicles
… of benefits to society, such as enhanced road safety and heightened quality of life. However, placing one's trust in the hands of an automated system is still a large concern to society. To facilitate the large-scale adoption of ADSs, they must be stringently tested and evaluated prior to …
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Pedestrian safety at urban mid-block crossings
… crashes continues to remain a challenge for road safety practitioners. Pedestrian crashes are not random events. They indicate not only an underlying environmental effect but also behavioural issues related to risk-taking. For this reason, this research aimed to obtain a comprehensive insight …
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Effectiveness of Vehicle External Communication Toward Improving Vulnerable Road User Safe Behaviors: Considerations for Legacy Vehicles to Automated Vehicles of the Future
… the communication methods between AVs and other road users sharing the environment to prepare for this future. Currently, researchers are working to understand how different forms of external communication on the AVs will impact vulnerable road user (VRU) interaction. However, within the last 10 …
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Developing a 'Road Safety Desert' Methodology for South Africa
Road safety is a significant problem in today's world, with the number of fatalities caused by road traffic crashes rising every year. The road safety problem has been described as ‘an epidemic on wheels' (Lamont, 2010), which is substantiated by the fact that over 1.35 million people die each year …