Safety Prediction Models for Six-Lane and One-Way Urban and Suburban Arterials

National Academies of Sciences, Engineering, and Medicine

doi:10.17226/26515

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Safety Prediction Models for Six-Lane and One-Way Urban and Suburban Arterials

(2022)

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The Highway Safety Manual (HSM) provides a predictive method for two- and four-lane urban and suburban arterial facilities with both undivided and divided cross-sections. The manual does not cover arterials with six or more lanes or one-way streets.

The TRB National Cooperative Highway Research Program's NCHRP Web-Only Document 318: Safety Prediction Models for Six-Lane and One-Way Urban and Suburban Arterials documents a safety prediction method for six-or-more-lane and one-way urban and suburban arterials, as well as intersections located on these facilities, that is suitable for incorporation in the HSM.

Supplemental to the document are a User Manual and a Prediction Model Spreadsheet.

Contributor(s): National Academies of Sciences, Engineering, and Medicine; Transportation Research Board; National Cooperative Highway Research Program; Dominique Lord; Srinivas Geedipally; Michael P. Pratt; Eun Sug Park; S. Hadi Khazraee; Kay Fitzpatrick

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Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2022. Safety Prediction Models for Six-Lane and One-Way Urban and Suburban Arterials. Washington, DC: The National Academies Press. https://doi.org/10.17226/26515.

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440 pages | 8.5 x 11 | DOI: https://doi.org/10.17226/26515

Chapters		skim
Front Matter	i-xii
SUMMARY	1-3
CHAPTER 1. INTRODUCTION	4-6
CHAPTER 2. LITERATURE REVIEW	7-48
CHAPTER 3. FRAMEWORK FOR SAFETY PREDICTION	49-57
CHAPTER 4. DEVELOPMENT OF PROJECT DATABASE	58-87
CHAPTER 5. PREDICTIVE MODELS FOR URBAN AND SUBURBAN ROADWAY SEGMENTS WITH SIX OR MORE LANES	88-109
CHAPTER 6. PREDICTIVE MODELS FOR INTERSECTIONS OF URBAN AND SUBURBAN ARTERIALS WITH SIX OR MORE LANES	110-124
CHAPTER 7. PREDICTIVE MODELS FOR URBAN AND SUBURBAN ONE-WAY ARTERIAL ROADWAY SEGMENTS	125-137
CHAPTER 8. PREDICTIVE MODELS FOR INTERSECTIONS OF URBAN AND SUBURBAN ONE-WAY ARTERIALS	138-148
CHAPTER 9. SEVERITY DISTRIBUTION FUNCTIONS	149-166
CHAPTER 10. SUMMARY, CONCLUSIONS, AND RECOMMENDATIONS	167-168
REFERENCES	169-173
APPENDIX A. Proposed Revision to Chapter 12 of the AASHTO Highway Safety Manual Predictive Method for Urban and Suburban Arterials	174-386
APPENDIX B. Workshop Sample Problems	387-427

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