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There is a need for improved techniques for estimating the performance of right-turn-on-red (RTOR) movements at signalized intersections.

NCHRP Research Report 1068: Right-Turn-on-Red Site Considerations and Capacity Analysis: Practitioner's Guide, from TRB's National Cooperative Highway Research Program, presents two methods for estimating RTOR volume and capacity, and a spreadsheet tool to facilitate the use of these methods. The report also presents guidance on when to prohibit RTOR at a given intersection.

Supplemental to the report is NCHRP Web-Only Document 368: Right-Turn-on-Red Operation at Signalized Intersections with Single and Dual Right-Turn Lanes: Evaluating Performance, a presentation, a spreadsheet tool, and a Computational Engine with RTOR.

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Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2023. Right-Turn-on-Red Site Considerations and Capacity Analysis: Practitioner's Guide. Washington, DC: The National Academies Press. https://doi.org/10.17226/27131.

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Publication Info

52 pages |  8.5 x 11 |  DOI: https://doi.org/10.17226/27131
Chapters skim
Front Matter i-viii
Chapter 1 - Research Overview 1-2
Chapter 2 - RTOR and No Turn on Red Site Selection 3-15
Chapter 3 - Spreadsheet Tool 16-31
Chapter 4 - Model Details 32-39
References 40-46

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