Traffic jam in urban centers is a mobility problem
responsible for significant economic losses and the degradation
of the environment. However, a wide range of technologies, in
particular, intelligent transportation systems, may be used to
predict, identify and reduce vehicular traffic congestion. In this
context, this work presents an Intelligent Traffic Information
System (ITIS) which relies on inter-vehicle communication in
order to avoid traffic jams in urban centers. The main goal
of the proposed system is to reduce the average trip time, the
fuel consumption and CO2 emissions, thus increasing vehicular
traffic efficiency, reducing economic losses and making cities more
environmental friendly. Simulation results for a synthetic scenario
have shown that our proposed system is able to accomplish this
goal. In particular, the average trip time was decreased ≈47%,
the fuel consumption ≈22% and the CO2 emission ≈24%.