Matrix of Variables and its Relationship to Traffic Flow in Misurata City
Traffic congestion simply means the increase in the volume of the actual traffic in a route of a road beyond the engineering design capacity. It is a phenomenon that emerged, especially in Misurata city, as a growing city in terms of population and vehicles, as well as in the land usages. There are some standards to be used in measuring the volume of congestion. The most common one is the six-letter A-F levels as defined in the US Highway Capacity Manual (HCM), where each level expresses a specific traffic case of the road using specific quantity such as flow, density, and volume of traffic to road capacity. This research gives a summary on the scientific concept of traffic congestion and the relationships that prevail over the traffic characteristics such as traffic flow, density, rush-hour factor, inter-space, inter-time, and traffic volume. Furthermore, the research reviews a study related to the traffic crowdedness from the actual traffic in Misurata city. The research gives a presentation on the measures to be taken in addressing traffic congestion. It concluded that the relationship between the traffic saturation and the variables are sometimes negative and positive in other times. Therefore, this shows that the traffic situation is not stable and at the same time not steady. In addition, there is a positive relationship in the area, subject matter of this study, between the saturation and the characteristics of the traffic attributes to the defect in the distribution within area CBD (the administrative and service centers within the city) during the day times.
Keywords - Traffic Flow, Traffic Density, Capacity.