All of the research summaries presented on the Road Safety Observatory has been produced following the same general methodology, although individual papers may have used additional approaches, in which case this is described in the individual research review.

The research reviews were limited to:

  • Evidence published by the Department for Transport and its contractors
  • Evidence identified from an internet search using search terms relevant to the particular topic
  • Evidence identified from the websites and research databases listed below.
  • Research published within the last 15 years, except where seminal pieces of work were conducted previous to this.
Website Name Link
Road Safety Knowledge Centre
Injury Observatory for Britain and Ireland
European Transport Safety Council (ETSC)
International Transport Forum (ITF/OECD)
National Highway Traffic Safety Administration (NHTSA)
UN Road Safety Collaboration
Database Name Link
TRID combines the records from TRB's Transportation Research Information Services (TRIS) Database and the OECD's Joint Transport Research Centre’s International Transport Research Documentation (ITRD) Database.
Transport Advice Portal
- from DfT and the Charted Institution of Highways and Transportation.
The portal acts as a depository of web links to documents that are seen as key guides to the planning, design and operation of road networks.
Systematic Reviews
- from Collaboration for Accident Prevention and Injury Control (CAPIC) CAPIC provides a regularly updated list of all the systematic reviews in injury prevention in a searchable format.
IngentaConnect A comprehensive depository of research studies.
PubMed PubMed comprises more than 22 million citations for biomedical literature from MEDLINE, life science journals, and online books.

Important Notes

The reviews of evidence on this site have been commissioned by the Road Safety Observatory Programme Board and reviewed by an independent Evidence Review Panel before publication. The reviews are neither systematic nor fully comprehensive. They represent a summary of the best evidence readily available to the research community, and will be kept under review and amended as required, for example, as new evidence emerges.

The Programme Board is not liable for the content of the reviews. The reviews are intended to be free from bias and independent of Government policies and the policies of the individual organisations on the Programme Board. Therefore, they may not always represent the views of all the individual organisations that comprise the Programme Board.