Quantification of Nonrecurrent Congestion Delay Caused by Freeway Accidents and Analysis of Causal Factors

The objectives of this study are twofold: to quantify nonrecurrent congestion delay caused by traffic accidents that occur on freeways and to analyze the causal factors by different types of accidents. Unlike previous studies, this study proposes an analytical procedure to estimate congestion impact by using the difference between speed reduced by a traffic accident and accident-free normal flow speed. The proposed method is demonstrated by a case study using accident data derived from 27 freeways in South Korea in 2008. Ultimately, the method can develop a performance measure for evaluating transportation policies and planning level analyses associated with the design of transportation systems and preparation of operating plans for safety, as well as for quantitatively evaluating deployed transportation projects or technologies. Moreover, the results from statistical analyses can potentially be useful in making strategic plans and formulating mitigation measures for reducing nonrecurrent congestion delay caused by accidents on the South Korean freeway system.

• Record URL:
  • https://doi.org/10.3141/2229-02
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=Quantification+of+Nonrecurrent+Congestion+Delay+Caused+by+Freeway+Accidents+and+Analysis+of+Causal+Factors&author=Y.+Chung&publication_year=2011
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780309167383
• Authors:
  • Chung, Younshik
• Publication Date: 2011

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Maps; References; Tables;
• Pagination: pp 8-18
• Monograph Title: Freeway Operations; Regional Systems Management and Operations; Managed Lanes 2011
• Serial:
  • Transportation Research Record: Journal of the Transportation Research Board
  • Issue Number: 2229
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Case studies; Freeway operations; Freeways; Nonrecurrent congestion; Statistical analysis; Strategic planning; Traffic crashes; Traffic mitigation; Traffic speed
• Geographic Terms: South Korea
• Subject Areas: Highways; Operations and Traffic Management; I73: Traffic Control;

Filing Info

• Accession Number: 01352853
• Record Type: Publication
• ISBN: 9780309167383
• Report/Paper Numbers: 11-0827
• Files: TRIS, TRB, ATRI
• Created Date: Sep 29 2011 7:55AM