Factors Contributing to Median Encroachments and Cross-Median Crashes

Transportation Research Board

doi:10.17226/22287

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Factors Contributing to Median Encroachments and Cross-Median Crashes

(2014)

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TRB’s National Cooperative Highway Research Program (NCHRP) Report 790: Factors Contributing to Median Encroachments and Cross-Median Crashes investigates the factors that contribute to median-related crashes and identifies design treatments and countermeasures that can be applied to improve median safety on divided highways.

Contributor(s): Transportation Research Board; Technical Activities Division; National Cooperative Highway Research Program; Douglas W. Harwood; David K. Gilmore; Jerry L. Graham; Mitchell K. O'Laughlin; Alison M. Smiley; Thomas P. Smahel

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Transportation Research Board. 2014. Factors Contributing to Median Encroachments and Cross-Median Crashes. Washington, DC: The National Academies Press. https://doi.org/10.17226/22287.

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Publication Info

90 pages | 8.5 x 11 | DOI: https://doi.org/10.17226/22287

Chapters		skim
Front Matter	i-vii
Summary	1-3
Section 1 - Introduction	4-5
Section 2 - Review of Median Safety Studies	6-22
Section 3 - Survey Results	23-36
Section 4 - Interdisciplinary Field Reviews	37-55
Section 5 - Crash Data Analyses to Investigate Contributing Factors	56-62
Section 6 - Guidelines for Geometric Design and Countermeasure Implementation to Reduce Median-Related Crashes	63-64
Section 7 - Conclusions and Recommendations	65-66
References	67-69
Abbreviations	70-70
Appendixes A through C	71-71
Appendix D - Guidelines for Reducing the Frequency and Severity of Median-Related Crashes on Divided Highways	72-84

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