01091696

Component

Unsignalized intersections with yield control or stop signs on the minor roads are one of the most common intersection types in the urban street systems in China. Good intersection design will promote traffic safety and efficient traffic operation. A poorly-operated unsignalized intersection may also cause serious traffic safety problems. Statistical crash data showed that in China 13,529 fatalities occurred at unsignalized intersections in 2005. Although lots of good safety design measures have been used to improve intersection safety and operation in recent years, some of them were not targeted at the safety problems and thus had little or negligible effects. However few researchers have explored the relationship of intersection design and safety in China. The objective of the paper was to identify the relationship of intersection design and the main crash reasons. Field studies were conducted at 96 selected intersections with yield control or stop signs on the minor roads to evaluate the safety design in Beijing’s urban streets. Nearly 410 crashes, occurring at these intersections in the last three years, were analyzed in detail in the paper. The behaviors of the road users (including drivers, bicyclists and pedestrians) were observed in different safety designs, which implied the relationship of intersection design and safety on urban streets. Based on the findings of crash reasons and defects of safety designs, the paper discussed some practical countermeasures to safety design for urban unsignalized intersections in China.

01091711

English

17p

2007

3rd Urban Street Symposium: Uptown, Downtown, or Small Town: Designing Urban Streets That Work

CD-ROM

Figures (10) ; References (16) ; Tables (2)

Behavior; Countermeasures; Crash analysis; Cyclists; Drivers; Highway design; Highway safety; Pedestrians; Streets; Traffic crashes; Traffic safety; Unsignalized intersections; Urban areas

Beijing (China)

Design; Highways; Pedestrians and Bicyclists; Planning and Forecasting; Safety and Human Factors; I21: Planning of Transport Infrastructure; I82: Accidents and Transport Infrastructure

TRIS, TRB

Apr 1 2008 1:49PM

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• A Model of Potential Capacity of Right Turn Movement at Signalized Intersections Under Mixed Traffic Conditions
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• Analyzing Raised Crosswalks Dimensions Influence on Speed Reduction in Urban Streets
• Applying Context Sensitive Techniques to Improve Design and Gain Stakeholder Support
• Benefits and Risks of Urban Roadside Landscape: Finding a Livable, Balanced Response
• Cross Section Width for Parallel Parking
• Design and Traffic Organization for Ultra-Wide Urban Street in China
• Designing Inside the Box - Strategies to Successfully Marry Smart Growth and Context-Sensitive Transportation Initiatives
• Designing Streets for Enhanced Transit Service: The Jerusalem Experience
• Driveway Design Practices, Issues, and Needs
• Estimating Running Time on Urban Street Segments
• Four-Lane to Three-Lane Conversions: An Update and a Case Study
• Geometric Design of Interchange in Urban City
• Improving Pedestrian Safety at Unsignalized Intersections
• Integrating Context Sensitive Solutions into University Transportation Education
• Involving the Public in Redesigning Urban Street Layouts in the UK
• Iowa's Experience with 2-Lane to 3-Lane Conversions
• Iowa's Experience with 4-Lane to 3-Lane Conversions
• Minnesota CSAH 42: A Case Study Illustrating Traffic Signal Removal as an Access Management Strategy
• Pedestrian Crossings Priority for Pedestrian Safety
• Recent Superstreet Implementation and Research
• Responding to the Challenges of Bicycle Crossings at Offset Intersections
• Retrofitting Urban Arterials into Complete Streets
• Review of Guidelines for Establishing School Speed Zones
• Safety Effect of the Skew Angle in Right Turn Maneuvers
• Separation Between Pedestrians and Bicyclists
• Shared-Use Streets – An Application of “Shared Space” to an American Small Town
• Should Direct Left-turns from Driveways be Replaced by Right-turns Followed by U-turns? The Safety and Operational Comparison in Florida
• Speed: How Can We Get What We Want?
• St. Louis Great Streets Initiative
• Study on the Safety Relationship between Left-turn Gap Acceptance and Waiting Time
• Sustainable Urban Street Design and Assessment
• Synthesis of the Median U-Turn Intersection Treatment, Safety, and Operational Benefits
• Traffic Calming in Slovenia
• Urban Street Reconstruction with Cultural Consideration-Research and Case Studies
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