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TRB’s National Cooperative Highway Research Program (NCHRP) Report 745: Left-Turn Accommodations at Unsignalized Intersections presents guidance for the selection and design of left-turn accommodations at unsignalized intersections.

The report includes 11 case studies of typical situations that illustrate the use of the guidance.

NCHRP Web-Only Document 193: Development of Left-Turn Lane Warrants for Unsignalized Intersections provides background on the development of NCHRP Report 745.

Topics

Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2013. Left-Turn Accommodations at Unsignalized Intersections. Washington, DC: The National Academies Press. https://doi.org/10.17226/22608.

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Publication Info

51 pages |  8.5 x 11 |  DOI: https://doi.org/10.17226/22608
Chapters skim
Front Matter i-viii
Summary 1-2
Chapter 1 - Introduction 3-4
Chapter 2 - Planning and Design Process 5-11
Chapter 3 - Geometric Design 12-22
Chapter 4 - Traffic Controls and Illumination 23-29
Chapter 5 - Design Examples 30-50
References 51-52

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