Highway Safety

Condition Diagram for Glenwood Ave & Peace St

Condition Diagram for Glenwood Ave & Peace St

Field Photo for Glenwood Ave & Peace St

Field Photo for Glenwood Ave & Peace St

Microwave Radar - The Future of Traffic Survey

Microwave Radar - The Future of Traffic Survey

Condition Diagram for Glenwood Ave & Peace StField Photo for Glenwood Ave & Peace StMicrowave Radar - The Future of Traffic Survey

The following are four projects I worked on for my graduate level Highway Safety course at NC State University. Building on the basic principles of highway data collection, this course enabled me to find data, statistically choose problem sites from a database of sites and collisions, recommend countermeasures, determine countermeasure effectiveness, and judge the validity of research studies conducted in this field.

Data Collection Technologies

Objective: Choose an innovative technology to better collect or manage highway safety data and write a paper on it. Review the state-of-practice of this technology or process and assess the chances that this technology will be successful.

Paper: Current State of Radar in Traffic Data Collection and Its Place Among Competing Technologies (PDF)

Identify Hazardous Sites

Objective: Using a database of a number of collisions over three years at intersections in Wake County, North Carolina, analyze the intersections using: Frequency and Rate method, Rate Quality Control method, Severity method, and the Sites with Promise method.

Results: Assignment 2 – Identifying Hazardous Sites (PDF)

Countermeasure Recommendation

Objective: Choose a promising or hazardous intersection. Conduct a field review, traffic conflict study, obtain collision data, draw a collision diagram, and use the results to recommend a cost-effective countermeasure for the intersection.

Paper: Appropriate Countermeasures for Hazardous Site: Glenwood Ave and Peace St., Raleigh, North Carolina (PDF)

Countermeasure Effectiveness

Objective: Manufacturers have just developed long-lasting, fluorescent sign material. Design an evaluation or experiment on behalf of the NCHRP to estimate collision savings of stop signs using this material over standard stop signs.

Paper: Controlled Experiment: Fluorescent Stop Signs in Wake County, NC (PDF)