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NCHRP Report 674: Crossing Solutions at Roundabouts and Channelized Turn Lanes for Pedestrians with Vision Disabilities (2011)
National Cooperative Highway Research Program (NCHRP)

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Rodegerdts, Lee, Guth, David, Long, Richard, Bentzen, Billie Louise, Schroeder, Bastian, Emerson, Robert Wall, Hughes, Ronald, Rouphail, Nagui, Cunningham, Christopher, Salamati, Katy, Kim, Dae, Barlow, Janet, Myers, Ed, Transportation Research Board. "Pretest Pedestrian Behavior at the PHB Crosswalk." NCHRP Report 674: Crossing Solutions at Roundabouts and Channelized Turn Lanes for Pedestrians with Vision Disabilities. Washington, DC: The National Academies Press, 2011.

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Page
129
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Page
129
Front Matter (R1-R11)
Summary (1-9)
Safety Is Not Synonymous with Access (10-10)
Scope of Work (11-11)
Content of This Report (12-12)
Facility Design (13-14)
Locating the Crosswalk (15-15)
The U.S. Access Board and ADA (16-16)
Midblock Crossings and Conventional Intersections (17-18)
Blind Pedestrian Crossing Experiments (19-19)
Driver Information Treatments (20-20)
Crosswalk Geometric Modification (21-21)
Signalization Treatments with APS (22-22)
Grade-Separated Crossing (23-23)
Participants (24-24)
Participant Questionnaires (25-25)
Identification and Selection of Treatments (26-26)
Site Selection (27-27)
Selection of Treatment Sites (28-33)
Crossing Performance Characteristics (34-34)
Opportunity Utilization Criterion (35-35)
Event Definitions (36-36)
Performance Measures (37-38)
Performance Measure Example (39-39)
Research Hypotheses (40-42)
Crossing Performance Results (43-44)
Participant Feedback (45-45)
Impact on Vehicular Traffic (46-46)
Study Overview (47-47)
Crossing Performance Results (48-49)
Impact on Vehicular Traffic (50-50)
Crossing Performance Results (51-54)
Participant Feedback (55-55)
Compliance with Signal Indications (56-57)
Impact on Vehicular Traffic (58-58)
Summary of Results (59-61)
Introduction (62-62)
Results (63-66)
Model Comparison (67-68)
Model Application (69-72)
Extension to Safety Modeling (73-73)
Applying the Framework to Simulation (74-77)
Simulation-Based Analysis of Signalized Crosswalks (78-80)
Discussion (81-81)
Synthesis of Approach (82-82)
Implications of Field Study Results (83-84)
Policy Implications (85-85)
The Impact of Vehicle Speed (86-86)
Inter-Participant Variability (87-87)
Learning Effect and O&M Training (88-88)
Confidence in Decision-Making (89-89)
Viability of Interventions as a Measure of Risk (90-90)
Driver Yielding and Enforcement (91-91)
Channelized Turn Lanes (92-92)
Two-Lane Roundabouts (93-93)
Future Research Needs (94-96)
References (97-98)
Appendix A - Detailed Results (99-100)
Crossing Statistics for CTL Site and Treatments (101-107)
Channelized Turn Lane Results Summary (108-109)
Crossing Statistics for Crosswalk (110-114)
Golden, CO, Single-Lane Roundabout Summary (115-115)
Site Description (116-117)
Crossing Statistics (118-119)
Discussion (120-120)
Pretest Pedestrian Behavior at the RCW (121-122)
Posttest Pedestrian Behavior at the RCW (123-123)
Performance Statistics for RCW (124-126)
RCW Summary (127-127)
Pretest Pedestrian Behavior at the PHB Crosswalk (128-129)
Posttest Blind Pedestrian Behavior at the PHB Crosswalk (130-132)
Performance Statistics at the PHB Crosswalk (133-135)
Driver Behavior at the PHB (136-137)
PHB Crosswalk Summary (138-139)
Appendix N - IRB Approval and Consent Forms (140-140)
Abbreviations used without definitions in TRB publications (141-141)