Analysis of Service and Quality Indicators in Public Works Concession Contracts or How to Improve Road Safety by Upgrading Quality Indicators and to be Penalised Due to Road Safety Indicators

Road safety is one of the main goals of any action that may be undertaken, from patching potholes in local roads to constructing a new highway stretch. In both cases, the aim is to improve road safety, which will benefit a higher or lower number of users depending on the magnitude of the intervention and infrastructure. The need for action will be determined by an administrative decision, generally arising from a planning and development process covering a wide range of interventions, as for example the construction of a highway stretch, or from the need to find a response to a user’s complaint or to the requirements of a local administration after supervising the state of the road, as it can be the patching of potholes in local roads. Nevertheless, the need for action should not be determined by the occurrence of a fatal event at a certain site without the subsequent analysis of its causes, as they might not be connected to the condition of the road. Therefore, a series of milestones, indicators or alarms, etc. are usually established to prevent the road from being in such a bad condition that leads to a traffic accident, constituting an absolute lack of road safety. This paper analyses the case of public works concession contracts corresponding to First-Generation Highways in Spain. All kinds of public-private partnership contracts can be also included, providing that they are regulated by indicators on the road condition and quality of service. On the one hand, indicators on the road condition and quality of service are analyzed in order to assess how the actions implemented to improve the parameters related to pavements (Sideway Force Coefficient “SFC”, International Roughness Index “IRI”, etc.), traffic signing, road marking, clearing, mowing, etc. lead to improvements in road safety. On the other side, there are those indicators strictly related to “road safety”. The analysis conducted shows that a wrong definition of these indicators leads to the impossibility to comply with them, which surprisingly results in an opposite outcome of that actually obtained by the actions carried out by the concessionaire.


  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; Tables;
  • Pagination: 17p
  • Monograph Title: Proceedings of the 25th World Road Congress - Seoul 2015: Roads and Mobility - Creating New Value from Transport

Subject/Index Terms

Filing Info

  • Accession Number: 01679904
  • Record Type: Publication
  • ISBN: 9782840604235
  • Report/Paper Numbers: 0538
  • Files: TRIS
  • Created Date: Aug 1 2018 7:41PM