تقييم كفاءة شبكة النقل بين المراكز الحضرية في محافظة بغداد

Abstract EN

The research aims to demonstrate the efficiency of the road network linking urban centers in Baghdad governorate, through a quantitative assessment of the reality of the road network, to provide the required services in a smooth and high efficiency for their users, as they represent the arteries of movement between urban centers, so it required the use of a number of approved metrics and indicators to give an indication of Efficiency of roads and to achieve the goal of the research, as the research dealt with nodes, connections and lengths of roads spatially distributed at the level of the Baghdad governorate, as each node is connected to direct and indirect connections and different lengths.

The study applied quantitative indicators in measuring the efficiency of the road network linking the nodes , The road density scale for the population and the area has found a difference in the degree of density between the administrative units according to the population numbers, the area of their administrative units and the length of the roads, while the road concentration index for the study area reached a high total concentration rate of (13.3%), indicating that the length of the roads in it You need to redistribute within the total area, and the beta correlation index reached that of the study area according to the index value that reached (1.5) with more than one complete network, and the gamma correlation index according to the index value (0.52) reached a degree less than one integer with weak correlation in the network Roads, The alpha correlation index in the study area according to the index value (0.28) reached a score less than one integer with a weak correlation between parts of the network, and the average correlation index Abler reached that the degree of the lowest correlation index for the study area reached (3.6) degrees, which is a low score if compared to an average The index of the current relevance of the study area reached (5.5) degrees, indicating that the network is weak and incomplete communication according to the indicator, and the index of correlation reached for the study area according to the value of the total indicator reached (2.3) degrees, which means that there is a connected network at the governorate level, either at the level of Administrative units The value of the indicator was less than (1) an integer, indicating that the road network has a relatively weak correlation, and by applying quantitative indicators it is possible to reach knowledge of the strength and weakness of the road network, and choose successful solutions for it.