TRB's National Cooperative Highway Research Program (NCHRP) Research Report 834: Crossing Solutions at Roundabouts and Channelized Turn Lanes for Pedestrians with Vision Disabilities: A Guidebook presents guidance on the application of crossing solutions at roundabouts and channelized turn lanes at signalized intersections for pedestrians with vision disabilities. This publication will be of interest to engineers tasked with designing a particular site, planners and decision makers at the municipal and state government levels, and others.
NCHRP Research Report 834 is supplemented by NCHRP Web-Only Document 222, which includes additional documentation and background information on project research. The research presented in NCHRP Web-Only 222 and NCHRP Research Report 834 builds on previous work on crossing challenges for pedestrians with vision disabilities presented in NCHRP Report 674.
National Academies of Sciences, Engineering, and Medicine. 2017. Crossing Solutions at Roundabouts and Channelized Turn Lanes for Pedestrians with Vision Disabilities: A Guidebook. Washington, DC: The National Academies Press. https://doi.org/10.17226/24678.
|Chapter 1 - Introduction||1-5|
|Chapter 2 - Design Process||6-9|
|Chapter 3 - General Principles for Pedestrian Wayfinding and Crossing Tasks||10-20|
|Chapter 4 - Design Principles for Pedestrian Access at Roundabouts||21-47|
|Chapter 5 - Design Principles for Pedestrian Access at Channelized Turn Lanes||48-67|
|Chapter 6 - Wayfinding Assessment||68-77|
|Chapter 7 - Crossing Assessment||78-97|
|Appendix A - Discussion of Audible Environment and Noise Effects||101-103|
|Appendix B - Summary of Crossing Treatments||104-121|
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