Technical Summary
NCHRP
Nov-05
This digest is an interim deliverable from NCHRP Project 17-25, Crash Reduction Factors for Traffic Engineering and ITS Improvements, which is being carried out under a contract with The University of North Carolina Highway Safety Research Center (HSRC) under the direction of David L. Harkey (Principal Investigator). Other members of the research team that contributed to this digest include Dr. Raghavan Srinivasan and Charles Zegeer of HSRC; Dr. Bhagwant Persaud and Craig Lyon of Ryerson University; and Kimberly Eccles, Dr. Forrest Council, and Dr. Hugh McGee of BMI-SG. This digest summarizes the current status of crash reduction factors for a variety of treatments, provides a summary of the best available crash reduction factors, and discusses the relationship between this study and other ongoing research studies that are either documenting or developing additional factors.
NCHRP Research Results Digest 299: Crash Reduction Factors for Traffic Engineering and Intelligent T
Crash reduction factors
Highway safety
Improvements
Intelligent transportation systems
Research
Traffic engineering
HSIS Summary Reports are two to eight pages in length and include a brief description of the issue addressed, data used, methodology applied, significant results, and practical implications.
A variety of research studies have been performed using data from HSIS. Many of the final reports prepared are now available electronically.
Research reports are often summarized in executive summaries, technical briefs, or other abbreviated formats. Included here are those road safety summaries that involved research using HSIS data.
In addition to conducting research, HSIS resources are also used to develop products that can be used by practitioners in the analysis of safety problems.
HSIS data are sometimes used in research studies that result in other types of finished products, such as dissertations, theses, and conference proceedings.
