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 9 of 9 for “"rumble strips"”.
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Evaluation of external noise produced by vehicles crossing over centerline rumble strips on undivided highways in Kansas
Centerline rumble strips (CLRS) are raised or indented patterns installed in the center of undivided rural two-lane highways. Their main function is to alert drivers who are encroaching or leaving the intended travel lane, by producing vibration and noise when crossed by vehicles’ tires. CLRS have …
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Optimizing work zone practices for highway construction projects
… and efficiency of innovative temporary rumble strips that can be used to minimize crashes in and around highway construction and maintenance projects. The research objectives of this study are to: (1) provide enhanced understanding of the impact of work zone parameters and innovative …
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Optimizing the selection of rumble strip design and construction
Rumble strips are proven cost-effective roadway safety measures in reducing traffic crashes by generating in-vehicle noise for alerting inattentive drivers who are about to leave their travel lanes and/or approach stop-controlled intersections. Despite these safety benefits, they generate external …
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A Safety Analysis of Fatigue and Drowsy Driving in the State of Utah
… countermeasures included cable median barrier, rumble strips, rest areas, and drowsy driving freeway signage. The freeway signage is used to alert drivers of the adverse effects of drowsy driving and was the basis for a before-after study as well as a public survey of drowsy driving along …
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Essays on Propensity Score Methods for Causal Inference in Observational Studies
… of the combined application of center line rumble strips and shoulder rumble strips on two-lane rural roads in Pennsylvania. </p><p>Chapter 4 proposes a method for estimating heterogeneous causal effects in observational studies by augmenting additive-interactive Gaussian process regression …
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Reactions to a Near Fatal Accident: An Investigation of Emotion and Coping Responses
… felt the bus swaying and heard the tires hit the rumble strips. The head coach went forward to find the bus driver unconscious and slumped over the steering wheel. Although the bus swerved into the oncoming lane of interstate traffic and back onto the other shoulder, the coach was able to steer …
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Assessment of road pollutants in roadside retention ponds.
… paint fragments linked to slip roads and painted rumble strips in the pond catchments, respectively. More additive chemicals were present in sediment (n = 21) compared to water (n = 8). Furthermore, a greater number were present above their PNEC in sediment (n = 11) indicating this matrix provides …
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Characteristics and contributory causes related to large truck crashes (phase-II) - all crashes
… ensuring proper lane markings, provision of rumble strips and elevated medians, use of technology to develop and implement intelligent countermeasures were recommended. These include Automated Truck Rollover Warning System to mitigate truck-crashes involving rollovers, Lane Drift Warning …
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Exploration and development of crash modification factors and functions for single and multiple treatments
… for roadway shoulder: - installing shoulder rumble strips, widening shoulder width, adding bike lanes, changing bike lane width, installing roadside barriers 3) Treatments related to roadside features: - decrease density of driveways, decrease density of roadside poles, increase distance to …