Research

DiExSys principals and employees are authors of numerous research papers on road safety published by the Transportation Research Board (TRB) of the National Academies, Swedish National Road and Transport Institute (VTI), German Road Research Institute (BAST), Italian Society of Highway Infrastructure Engineers (SIIV) and Public Works Magazine. Our research is applied and practice ready.

In Press

A Closer Look at Highway Safety Diagnostics and Crash Analysis

Level of Service of Safety Revisited

Relationship Between Traffic Density, Speed, and Safety and Its Implications for Setting Variable Speed Limits on Freeways

Relationship Between Freeway Flow Parameters and Safety and Its Implication for Adding Lanes

Relationship Between Freeway Flow Parameters and Safety and Its Implications for Hard Shoulder Running

Relation of Flow, Speed, and Density of Urban Freeways to Functional Form of a Safety Performance Function

Relationships Between Safety and Both Congestion and Number of Lanes on Urban Freeways

Level of Service of Safety Conceptual Blueprint and Analytical Framework

Explicit Consideration of Safety in Transportation Planning and Project Scoping

How Best to Rank Sites with Promise

Identifying Locations with Potential for Accident Reductions

Diagnostic Methodology for the Detection of Safety Problems at Intersections

Screening the Road Network for Sites with Promise

Risk Analysis of Freeway Lane Closure During Peak Period

Exploratory Analysis of Relationship between the Number of Lanes and Safety on Urban Freeways

Exploratory Examination of the Functional Form of Safety Performance Functions of Urban Freeways

Safety Planning Study of Urban Freeways

If you have an interest in reading the entire paper, please contact us.