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.
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.
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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