The European Commission has recently published the Study on market development and safety of personal mobility devices (PMDs) and L-category vehicles, prepared by the Transport Research Laboratory (TRL). The main objectives of this Study were to provide an inventory of the various types of personal mobility devices available on the market, to provide a detailed analysis of the market and the influence of the existing legislations at EU and national level and to provide a collection and evaluation of available data and information on accidents involving personal mobility devices.