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 11 of 11 for “"near-crash"”.
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The Effects of Cognitive Executive Load on Driving Crashes and Near-Crashes
… and manual secondary tasks increase driving crash risk. With the increasing use of infotainment systems in vehicles, secondary tasks requiring cognitive executive demand may increase crash risk, especially for young and older drivers. Naturalistic driving data were examined to determine if …
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Modeling Driver Behavior and I-ADAS in Intersection Traversals
… (I-ADAS) may prevent 25 to 93% of intersection crashes. The effectiveness of I-ADAS will be limited by driver's pre-crash behavior and other environmental factors. This study will characterize real-world intersection traversals to evaluate the effectiveness of I-ADAS while accounting for driver …
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Assessing the Effects of Driving Inattention on Relative Crash Risk
… on our nation's highways and the relative crash risk is unknown. It has recently become technologically feasible to conduct unobtrusive large-scale naturalistic driving studies as the costs and size of computer equipment and sensor technology have both dramatically decreased. A large-scale …
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Application of Machine Learning and Deep Learning Approaches for Traffic Operation and Safety Assessment at Signalized Intersections
… also boost traffic safety by predicting near-crash events leveraging cutting-edge datasets like LiDAR. This thesis addresses such applications of machine learning and deep learning approaches using emerging traffic datasets. A novel deep learning model, MGCNN is suggested for short-term …
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Threat Assessment and Proactive Decision-Making for Crash Avoidance in Autonomous Vehicles
… give an autonomous vehicle enough time to avoid crashes or near crash situations. Most vehicles on roads are human-driven, making it challenging to predict their intentions and movements due to inherent uncertainty in their behaviors. Moreover, different driver behaviors pose different kinds of …
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Understanding Fixed Object Crashes with SHRP2 Naturalistic Driving Study Data
Fixed-object crashes have long time been considered as major roadway safety concerns. While previous relevant studies tended to address such crashes in the context of roadway departures, and heavily relied on police-reported accidents data, this study integrated the SHRP2 NDS and RID data for …
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Evaluating Time-varying Effect in Single-type and Multi-type Semi-parametric Recurrent Event Models
… research question of evaluating the influence of crash on driving risk and driver behavior. The methodologies developed, however, are general and can be applied to other fields. Four alternative approaches based on various data settings are elaborated and applied to 100-Car Naturalistic Driving …
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Recurrent-Event Models for Change-Points Detection
… instrumentation. The results indicate that crash and near-crash rate decreases significantly after 73 hours of independent driving after licensure. The models in part one assume identical change-points for all drivers. However, several studies showed that different patterns of risk change …
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Safety analysis of freeway interchange speed change lane facilities
… segment. One study found that 36 percent of all crashes at a freeway interchange occur as drivers enter the freeway, and 53 percent of all crashes at a freeway interchange occur as divers exit the freeway. The same study also reported that freeway interchanges witness higher crashes per mile than …
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Characterizing Human Driving Behavior Through an Analysis of Naturalistic Driving Data
Reducing the number of motor vehicle crashes is one of the major challenges of our times. Current strategies to reduce crash rates can be divided into two groups: identifying risky driving behavior prior to crashes to proactively reduce risk and automating some or all human driving tasks using …
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The Impact of Sleep Disorders on Driving Safety - Findings from the SHRP2 Naturalistic Driving Study
This study is the first examination on the association between seven types of sleep disorder and driving risk using large-scale naturalistic driving study data involving more than 3,400 participants. Regression analyses revealed that females with restless leg syndrome or sleep apnea and drivers …