ITSs facilitate the management of transport flows
by reducing congestion, air pollution, and time spent
in traffic jams as well as increasing safety with the helpof warnings regarding dangerous situations caused by
human or environmental factors (Chowdhury, Sadek
2003).
ITSs are centrally managed information systems
used in vehicles and road infrastructure, which can
help reducing the duration of a journey and assuring
the safety and convenience of drivers; in addition, they
can significantly contribute to reduction of energy consumption and environmental pollution (Diebold 1995