Anonymised Floating Car Data – the long path to data sharing

It is expected that there exists a significantly unused value while reusing floating car data (FCD) for other purposes than initially anticipated. An open reuse of such data requires that drivers whose driving pattern can be reflected from such data remain anonymised regardless of any later use of the FCD. The FCD collected in the Danish big data project, ITS Platform, have been anonymised. Anonymisation has partly been implemented by removing the time of driving, although the main effort ensured that the starts and stops of any trips do not eliminate anonymisation. FCD from 389 cars have been anonymised. In total, 0.74 billion positions and a distance driven of about 9.7 million km were anonymised. The anonymised FCD reflect the original driving pattern, although the number of trips has been reduced by 26%, while the distance pr. trip has increased by 27%.