01154521

Component

https://doi.org/10.3141/2178-06

http://scholar.google.com...Choi&publication_year=2010

Understanding the relationship between the characteristics of an accident and its duration is crucial for efficient response to and timely clearance of an accident, which can minimize traffic delays and congestion on the freeway. Although about 3,000 traffic accidents occur annually on South Korean freeways, only limited studies have been conducted that comprehensively model traffic accidents, including characteristic attributes such as accident duration. The objective of this study is to analyze the critical factors that affect accident duration by means of an accelerated failure time (AFT) metric model and to develop strategic plans and mitigation measures for reducing accident duration on South Korean freeway systems. In total, 2,940 accident data sets, spanning one year (2004), are used. On the basis of the log logistic AFT metric model and survival analysis, the paper suggests some strategic plans and mitigation measures to reduce accident duration on freeway systems in South Korea. In particular, it is hypothesized that, for accidents that occur at night or in a work zone area or are taxi related, the accident duration can be reduced by, among other measures, adding more roadside facilities, employing better freeway management strategies, changing taxi-related policies, or using any combination of those measures. Overall, analytical modeling of traffic accidents and their characteristic attributes, as demonstrated in this paper, should be used routinely as an aid in the strategic planning and formulation of mitigation measures for reducing accident duration on Korean freeway systems.

01326542

10-1920

English

pp 49-57

2010

Transportation Research Record: Journal of the Transportation Research Board

9780309160490

Print

Figures (3) ; References (27) ; Tables (3)

Crash characteristics; Freeways; Highway traffic control; Mathematical models; Strategic planning; Time duration; Traffic crashes

Accident mitigation

South Korea

Highways; Operations and Traffic Management; Safety and Human Factors; I73: Traffic Control; I80: Accident Studies

TRIS, TRB, ATRI

Jan 25 2010 10:53AM

• Analysis of Cascading Incident Event Durations on Urban Freeways
• Comparison of Algorithms for Systematic Tracking of Patterns of Traffic Congestion on Freeways in Portland, Oregon
• Dynamic Toll Concept to Assess Feasibility of High-Occupancy Vehicle Lane on Kyungbu Freeway, South Korea
• Empirical Method for Estimating Traffic Incident Recovery Time
• Estimation of Freeway Traffic Density with Loop Detector and Probe Vehicle Data
• Exploration of Operational Concepts of Interoperability for Robust Interregional Transportation System Operations
• Freeway Operations, Spatiotemporal-Incident Characteristics and Secondary-Crash Occurrence
• Freeway Sensor Spacing and Probe Vehicle Penetration: Impacts on Travel Time Prediction and Estimation Accuracy
• Heuristic Ramp-Metering Coordination Strategy Implemented at Monash Freeway, Australia
• Local Ramp Metering in Random-Location Bottlenecks Downstream of Metered On-Ramp
• Predicting Freeway Travel Time Under Incident Conditions
• Queue Management Techniques for Metered Freeway On-Ramps (With Discussion)
• Simulation Tool to Assess Impacts of Parameters of Service Patrol Operations
• Spatial Analysis and Modeling of Traffic Incidents for Proactive Incident Management and Strategic Planning
• Stochastic Characteristics of Freeway Traffic Speed During Breakdown and Recovery Periods
• To What Extent Can High-Occupancy Vehicle Lanes Reduce Vehicle Trips and Congestion? Exploratory Analysis Using National Statistics
• Violations Modeling in Studies of Concurrent-Flow Lanes
• What Drives Decisions of Single-Occupant Travelers in High-Occupancy Vehicle Lanes? Investigation Using Archived Traffic and Tolling Data from MnPASS Express Lanes