Abstract
Floating Car Data is a well known technology used in traffic science to detect travel time, average speed and disturbances with the help of probe cars moving as mobile sensors in a road network of interest. As GPS and GSM is available all over Europe, it is nowadays possible to generate FCD data with a simple software implementation on mobile devices such as PDA's, MDA's or navigation systems connected to a GSM module. After the generation of FCD based traffic data it can be sent to a service centre and help to improve fleet and traffic management. Results from field trials in Berlin, Hanover and Athens will be presented.