An efficient algorithm was proposed for disseminating real-time traffic information in vehicular ad-hoc networks （VANET’s）. In this algorithm

each participating vehicle made local decision on when to disseminate and how many to disseminate by local traffic information. In order to deal with the bandwidth and memory constraints

reports were prioritized in terms of their importance ranks. Finally

the proposed algorithm was compared by simulations with Grassroots

an existing VANET flooding dissemination algorithm. The simulation results show that the algorithm is better than Grassroots.