INTRODUCTIONTraffic congestion is a major problem found inurban cities. Transportation systems are necessary toeconomic and the security of the human. Theeffectiveness of a transportation system depends on itsability to support the reliable movement of vehicles fromone place to another. An urban traffic system is animportant yet complex transportation system composedof pedestrians, vehicles, traffic lights and a trafficnetwork model (Sheu, 2006). Problems related to urbantraffic is serious matter and many researchers are tryinghard to resolve them.