Other Publication
Mohammed Said Obeidat and Malgorzata J Rys
Jan-16
The Federal Highway Administration uses lighting as a significant countermeasure to increase roadway safety during nighttime. Statistics show that 25% of all motor vehicle travels occur at night, but approximately 50% of all traffic fatalities occur during nighttime. This research investigated the benefits of intersection lighting on the expected nighttime crashes reduction in both rural and urban intersections. Recent crash data from the Highway Safety Information System database for Minnesota and California were used to study the effect of intersection lighting on the expected nighttime crash frequency. The negative binomial regression model was used to analyze data. Overall, illuminated intersections showed a reduction of 3.61% and 6.54% in the expected nighttime crash frequency as compared to dark intersections in Minnesota and California, respectively.
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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.
