01477136

Component

https://doi.org/10.3141/2393-09

http://scholar.google.com...sein&publication_year=2013

The potential for using computer vision techniques to solve several shortcomings associated with traditional road safety and behavior analysis is demonstrated. Surrogate data such as traffic conflicts provide invaluable information that can be used to understand collision-contributing factors and the collision failure mechanism better. Recent advances in computer vision techniques have encouraged the use of proactive safety surrogate measures such as detection of conflicts and violations. The objective of this study is to demonstrate the automated safety diagnosis of pedestrian crossing safety issues by using computer vision techniques. The automated safety diagnosis is applied at a major signalized intersection in downtown Vancouver, British Columbia, Canada, at which concerns had been raised regarding the high conflict rate between vehicles and pedestrians as well as the elevated number of traffic violations (i.e., jaywalking). This study is unique in its attempt to extract conflict indicators and detect violations from video sequences in a fully automated way. This line of research benefits safety experts because it provides a prompt and objective safety evaluation for intersections. The research also provides a permanent database for traffic information that can be beneficial for a sound safety diagnosis as well as for developing safety countermeasures.

01518276

13-2889

English

pp 75–84

2013

Transportation Research Record: Journal of the Transportation Research Board

9780309287173

Print

Bibliography; Figures (7) ; References (57) ; Tables (2)

Automation; Computer vision; Pedestrian movement; Pedestrian safety; Signalized intersections; Traffic violations

Vancouver (Canada)

Highways; Pedestrians and Bicyclists; Safety and Human Factors; I80: Accident Studies

TRIS, TRB, ATRI

Feb 5 2013 12:35PM

• Analysis of Pedestrian Performance in Shared-Space Environments
• Analysis of Pedestrian–Vehicle Traffic Conflicts in Street Designs with Elements of Shared Space
• Considerations for Integrating Bicycling and Walking Facilities into Urban Infrastructure
• Development of Canadian National Pedestrian Crossing Control Guide
• Do All Roadway Users Want the Same Things? Results from Roadway Design Survey of San Francisco Bay Area Pedestrians, Drivers, Bicyclists, and Transit Users
• Do Complete Streets Cost More Than Incomplete Streets?
• Effect of Advance Yield Markings and Symbolic Signs on Vehicle–Pedestrian Conflicts: Field Evaluation
• Effect of Left-Turn Operational Mode on Pedestrian Safety: Development of Models and Guidelines
• Effectiveness of Audible and Tactile Heading Cues at Complex Intersections for Pedestrians Who Are Blind
• Effects of High-Visibility Enforcement on Driver Compliance with Pedestrian Yield Right-of-Way Laws
• Evaluation of Pedestrian Safety: Pedestrian Crash Hot Spots and Risk Factors for Injury Severity
• Feature Analysis and Operation Evaluation of Pedestrian Weaving Zone
• Improving Cyclist and Pedestrian Environment While Maintaining Vehicle Throughput: Before- and After-Construction Analysis
• Missing Links: How Social Paths Can Improve Pedestrian Accessibility to Light Rail
• Pedestrian Crash Risk on Boundary Roadways: University Campus Case Study
• Sight Distance for Disabled Pedestrians at Crossings: Methodology Comparison with Other Modes
• Study on Pedestrian Red-Time Crossing Behavior: Integrated Field Observation and Questionnaire Data
• Use of Spatiotemporal Parameters of Gait for Automated Classification of Pedestrian Gender and Age
• Using a Smartphone Application to Support Visually Impaired Pedestrians at Signalized Intersection Crossings