The Highway Safety Manual (HSM) is the compilation of national safety research that provides quantitative methods for analyzing highway safety. The HSM presents crash modification functions related to … [Read more...] about Safety Assessment Tool for Construction Zone Work Phasing Plans
Risk Analysis
In-Depth Analysis of Drivers’ Merging Behavior and Rear-End Crash Risks in Work Zone Merging Areas
This study investigates the drivers’ merging behavior and the rear-end crash risk in work zone merging areas during the entire merging implementation period from the time of starting a merging … [Read more...] about In-Depth Analysis of Drivers’ Merging Behavior and Rear-End Crash Risks in Work Zone Merging Areas
Analysis of Work Zone Rear-End Crash Risk for Different Vehicle-Following Patterns
This study evaluates rear-end crash risk associated with work zone operations for four different vehicle-following patterns: car—car, car—truck, truck—car and truck—truck. The deceleration rate to … [Read more...] about Analysis of Work Zone Rear-End Crash Risk for Different Vehicle-Following Patterns
Speed Characteristics and Safety Risk Level Evaluation for Nighttime Roadway Work Area
More and more roadway projects are conducted during nighttime to satisfy heavy travelling demands in the daytime. However, the Nighttime Roadway Work (NRW) produces several safety problems. As a … [Read more...] about Speed Characteristics and Safety Risk Level Evaluation for Nighttime Roadway Work Area
Tree-Based Logistic Regression Approach for Work Zone Casualty Risk Assessment
This study presents a tree-based logistic regression approach to assessing work zone casualty risk, which is defined as the probability of a vehicle occupant being killed or injured in a work zone … [Read more...] about Tree-Based Logistic Regression Approach for Work Zone Casualty Risk Assessment
Identification and Assessment of Risks Involved in Operations and Maintenance Activities on Highways: Crash Data Analysis and Development of Severity-Frequency Lists
Mobile operations and highway maintenance work is among the riskiest activities of state highway agencies. Over the past ten years 1,300 fatal-major crashes occurred in Iowa due to mobile operations. … [Read more...] about Identification and Assessment of Risks Involved in Operations and Maintenance Activities on Highways: Crash Data Analysis and Development of Severity-Frequency Lists