Abstract: A new idea to bring broadband service to vehicles by WOBAN (hybrid WirelessOptical BroadbandAccess Network) was presented and a working model of an urban road WOBAN was given. Considering traffic flow as a key factor for the optimal ONU (Optical Network Unit) placement in urban road WOBAN, a scheme to characterize urban road features based on traffic flow was proposed and four examined spot types were defined. Furthermore, we compared two place evaluation strategies. 

Key words: ONU, ONU placement, traffic flow, urban road , WOBAN, ONU, ONU placement, traffic flow, urban road