Data sources

This section talks about the various sources of data available to you and when each is most appropriate to use.

2. External sources of secondary data

Other important data sources are external ones and the range of them is larger than you may imagine. Some possibilities include:

  • data from other companies, stakeholders and operators (as a benchmark) such as annual reports, other financial reports, adverts, tendering announcements. This type of data is the most difficult to collect; very often it is not publicly available.
  • specialised journals, especially publications of chambers of public transport (if they exist), scientific journals, statistical bulletins
  • case studies
  • deliverables within different transport/mobility focused projects co-financed by the EU - many of these are described in the case study database on the EU's Eltis website
  • general statistical publications (e.g. data on individual motorisation, customer price index, GDP, general wealth, demographic data and other parameters of local, regional and national population)
  • syndicated service data which are provided by companies that collect data in a standard format and make them available to subscribers. Such data may range from very general to highly specialised/specific and is generally not available to the general public
  • external data bases

You can also go to for more ideas, and depending what you want to research, you may have other ideas yourself. It pays to keep an open mind with regard to the possibilities.