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Full-Text Articles in Engineering
Highway Work Zone Risk Factors And Their Impact On Crash Severity, Yingfeng Li, Yong Bai
Highway Work Zone Risk Factors And Their Impact On Crash Severity, Yingfeng Li, Yong Bai
Civil and Environmental Engineering Faculty Research and Publications
Numerous factors may contribute to high-severity crashes in highway work zones. Identifying these factors and then alleviating their impact is a challenging task that traffic engineers and researchers have to confront. In this study, the work zone risk factors that could increase the probability of causing fatalities when severe crashes occur were examined using a comprehensive approach. The researchers first identified the significant risk factors based on a screening process that incorporates both statistical analyses and empirical research findings. They then systematically investigated these factors using logistic regression and frequency analysis techniques. The severe crashes including the fatal crashes between …
Worker Injury Prevention Strategies, Carlos A. Ferreira-Diaz, Alma Torres-Zapata, Christopher A. Nanovic, Dulcy M. Abraham
Worker Injury Prevention Strategies, Carlos A. Ferreira-Diaz, Alma Torres-Zapata, Christopher A. Nanovic, Dulcy M. Abraham
JTRP Technical Reports
As the trend of increased highway construction and/or rehabilitation continues to grow, the public often demands that delays in work zones be kept to a minimum. Thus, the flow of traffic through the construction zone must be maintained while performing pavement maintenance/ repair/ reconstruction activities. At the same time, the safety of personnel and property in highway construction work zones must be ensured. Three types of risks are encountered by construction and maintenance workers in construction workzones: (a) risks due to underprotection or lack of protection against potential hazards (including lack of hearing protection, eye protection, respiratory protection); (b) effect …
Effectiveness Of Temporary Traffic Control Measures In Highway Work Zones, Yingfeng Li, Yong Bai
Effectiveness Of Temporary Traffic Control Measures In Highway Work Zones, Yingfeng Li, Yong Bai
Civil and Environmental Engineering Faculty Research and Publications
In the United States, hundreds of people lose their lives each year and many more are injured due to vehicle crashes in the work zones. Over the years, temporary traffic control (TCC) measures have been developed and deployed in work zones. To continuously improve the safety, there is a need to identify the traffic control deficiencies in work zones by evaluating the effectiveness of existing TTC measures based on the real crash cases. In this study, researchers evaluated the effectiveness of several commonly used TTC methods using logistic regression techniques and various significance test methods including likelihood ratio test, score …
Comprehensive Analytical Investigation Of The Safety Of Unsignalized Intersections, Kirolos Haleem
Comprehensive Analytical Investigation Of The Safety Of Unsignalized Intersections, Kirolos Haleem
Electronic Theses and Dissertations
According to documented statistics, intersections are among the most hazardous locations on roadway systems. Many studies have extensively analyzed safety of signalized intersections, but did not put their major focus on the most frequent type of intersections, unsignalized intersections. Unsignalized intersections are those intersections with stop control, yield control and no traffic control. Unsignalized intersections can be differentiated from their signalized counterparts in that their operational functions take place without the presence of a traffic signal. In this dissertation, multiple approaches of analyzing safety at unsignalized intersections were conducted. This was investigated in this study by analyzing total crashes, the …
Analyses Of Crash Occurence And Injury Severities On Multi Lane Highways Using Machine Learning Algorithms, Abhishek Das
Analyses Of Crash Occurence And Injury Severities On Multi Lane Highways Using Machine Learning Algorithms, Abhishek Das
Electronic Theses and Dissertations
Reduction of crash occurrence on the various roadway locations (mid-block segments; signalized intersections; un-signalized intersections) and the mitigation of injury severity in the event of a crash are the major concerns of transportation safety engineers. Multi lane arterial roadways (excluding freeways and expressways) account for forty-three percent of fatal crashes in the state of Florida. Significant contributing causes fall under the broad categories of aggressive driver behavior; adverse weather and environmental conditions; and roadway geometric and traffic factors. The objective of this research was the implementation of innovative, state-of-the-art analytical methods to identify the contributing factors for crashes and injury …