This book constitutes the proceedings of the 12th International Workshop on Communication Technologies for Vehicles, Nets4Cars/Nets4Trains/Nets4Aircraft 2017, held in Toulouse, France, in May 2017. The 12 full papers presented together with 2 demo papers in this volumewere carefully reviewed and selected from 16 submissions. The volume features contributions in the theory or practice of intelligent transportation systems (ITS) and communication technologies for: Vehicles on road: e.g. cars, tracks and buses; Air: e.g. aircraft and unmanned aerial vehicles; and Rail: e.g. trains, metros and trams.

This book constitutes the proceedings of the 10th International Workshop on Communication Technologies for Vehicles, Nets4Cars/Nets4Trains/Nets4Aircraft 2016, held in San Sebastian, Spain, in June 2016. The 13 papers presented together with 2 keynote papers, 2 invited papers, and 1 demo paper in this volume were carefully reviewed and selected from 17 initial submissions. The contributions are organized in topical sections named: road, rail, and air.