Ranking of High Accident Concentration Sections and Network Safety Ranking

Directive 2008/96/EC of the European Parliament and of the Council of 19 November 2008 on Road Infrastructure Safety Management was transposed into national legislation LN 34 of 2011 and forms part of S.L. 499.57 New Roads and Road Work Regulations, were Network Safety Ranking and Ranking of High Accident Concentration Sections are defined.

Network Safety Ranking is defined as a method of identifying, analysing and classifying parts of the existing road network according to their potential for safety development and accident cost savings.

Ranking of High Accident Concentration Sections is defined as a method to identify, analyse and rank sections of the road network which have been in operation for more than three years and upon which a large number of fatal accidents in proportion to the traffic flow have occurred.

The accident ranking is carried out for single sites and/or for links every three years as follows:

  • Single Sites and Junctions
    • collision numbers for the past three years
    • and/or weighting of Killed and Seriously Injured (KSi) Casualties
    • and/or weighting of Vulnerable Road Users (VRU)
  • Links
    • collisions/km for the past three years
    • and/or weighting of Killed and Seriously Injured (KSi) Casualties
    • and/or weighting of Vulnerable Road Users (VRU)
    • and/or collision rates (collisions per 10 million vehicle km)

The Directive requires the data to be provided at least every three years. This is provided for recorded accidents and is ranked in two ways, firstly by absolute number of accidents and secondly by accident severity.

Data for Accident Ranking years 2007, 2008 and 2009, can be found here (pdf, 46.0Kb)