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Prior to 2013, the use of bicycle-specific signals in the U.S. was limited to a few jurisdictions. However, in recent years, the number of installations has grown rapidly. This research identified more than 500 intersections using bicycle signals in a variety of contexts.

Despite the recent approval and practice, the TRB National Cooperative Highway Research Program's NCHRP Web-Only Document 273: Road User Understanding of Bicycle Signal Faces on Traffic Signals explores the questions that remain regarding road-user understanding of bicycle signals.

The objective of this research was to summarize and synthesize the U.S. experience with bicycle signal installations to identify any remaining gaps in understanding road-user comprehension and compliance with bicycle signals that could be effectively addressed through further research.

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Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2020. Road User Understanding of Bicycle Signal Faces on Traffic Signals. Washington, DC: The National Academies Press. https://doi.org/10.17226/25676.

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Publication Info

145 pages |  8.5 x 11 |  DOI: https://doi.org/10.17226/25676
Chapters skim
Front Matter i-vi
Summary 1-3
1. Introduction 4-6
2. Background and Literature Review 7-25
3. State of the Practice and Inventory 26-48
4. Key Agency Interviews 49-67
5. Identified Research Gaps 68-70
References 71-79
Acronyms 80-80
Appendix A List of Intersections 81-105
Appendix B Data Collection Protocol 106-125
Appendix C Research Needs Statements 126-138

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