Global ETD Search
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Showing 1 to 6 of 6 for “"Crash modification factors"”.
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Developing crash modification factors for operational parameters on urban freeways
… the objective of improved understanding of the factors that cause crashes to occur. However, it has been shown that as traffic volumes continue to increase across the United States, 52% of drivers feel less safe on the roads today more than they did five years ago and that the American public …
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Exploration and development of crash modification factors and functions for single and multiple treatments
… both fatality and injury rates from road traffic crashes in the United States have been steadily declining over the last six years (2006~2011). However, according to the National Highway Traffic Safety Administration (NHTSA, 2013), 33,561 people died in motor vehicle traffic crashes in the United …
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A STUDY OF SAFETY IMPACTS OF DIFFERENT TYPES OF DRIVEWAYS AND THEIR PROXIMITY
… having less than 50 parking spaces. The HSM crash prediction models require the inputs of driveway type and density. However, the actual impacts of different types of driveways on the number of crashes are not clear. The crash modification factors were provided based on few past studies, with …
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An Interactive Learning Framework for Understanding Infrastructure Health Monitoring and Leveraging Machine Learning for Safety Improvement
Crash mitigation in modern transportation systems requires more than just reactive safety strategies. It demands a comprehensive understanding of how infrastructure health conditions directly influence crash occurrence and severity patterns. As road networks continue to deteriorate and traffic …
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Calibration of the Highway Safety Manual and development of new safety performance functions for rural multilane highways in Kansas
… roadways in Kansas. In recent years, rural fatal crashes have accounted for about 66% of all fatal crashes. The Highway Safety Manual (HSM) provides models and methodologies for analyzing the safety of various types of highways. Predictive methods in the HSM were developed based on national trends …
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Traffic Safety Assessment of Different Toll Collection Systems on Expressways Using Multiple Analytical Techniques
… important issues in the transportation field. Crashes have caused extensive human and economic losses. With the objective of reducing crash occurrence and alleviating crash injury severity, major efforts have been dedicated to reveal the hazardous factors that affect crash occurrence. With …