Comparison of Italian and Hungarian Black Spot Ranking

Black spot ranking is an important tool for finding the sites with potential safety improvement on the road network. The European Union (EU) Directive on Road Infrastructure Safety Management also demands the ranking of high accident concentration sites. This paper gives an introduction to localizing high accident concentration sites and the indicators used by Italy and Hungary. Accident and traffic volume data are gathered for motorway sections from both countries. Safety ranking is made using two conventional indicators, absolute number of accidents and accident rate. A more sophisticated ranking using the Empirical Bayes method is applied. Expected average crash frequency with Empirical Bayes adjustment is calculated. Based on the estimation of the crash frequency, the Critical Crash Rate (CCR) was added to identify and rank black spots. This additional performance measure is able to take into account traffic volume as required by the EU Directive. Results of the Empirical Bayes method are compared with the conventional procedures. It is concluded that the results are not comparable; inasmuch as there are modifications in the order of black spots. Based on the comparison of results recommendations are given to change the practice in both countries.

• Record URL:
  • https://doi.org/10.1016/j.trpro.2016.05.230
• Record URL:
  • http://www.sciencedirect.com/science/article/pii/S2352146516302332
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/23521465
• Supplemental Notes:
  • © 2016 A. Borsos et al. Published by Elsevier B.V.
• Authors:
  • Borsos, A
  • Cafiso, S
  • D’Agostino, C
  • Miletics, D
• Conference:
  • 6th Transport Research Arena (TRA2016)
  • Location: Warsaw , Poland
  • Date: 2016-4-18 to 2016-4-21
• Publication Date: 2016

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 2148-2157
• Serial:
  • Transportation Research Procedia
  • Volume: 14
  • Publisher: Elsevier
  • ISSN: 2352-1465
  • Serial URL: http://www.sciencedirect.com/science/journal/23521465/
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Crash rates; Crashes; High risk locations; Highway safety
• Uncontrolled Terms: Empirical Bayes method
• Geographic Terms: Hungary; Italy
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 01604871
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 23 2016 2:43PM