Some traffic characteristics of rural roads in Iraq

Abstract

Now a days, modeling traffic characteristics are very important in evaluating traffic facilitates such normal section, weaving and merging sections. Lane changing and lane utilization are important traffic characteristics that are widely studied. Therefore this study is focused on both of these. The lane changing behavior affects the capacity and safety of roads. The distribution of vehicles among lanes of roadway is important in terms of different aspects such as safety, traffic management and even the structural design of roads. Field data have been collected from different rural roads. Two types of roads were studied; two-lane section and three-lane section. The results of analysis for collected data indicate that the driver behaviour is different in terms of lane utilization in Iraq from other countries and the same behaviour was found for lane changes also. Compared to other countries, Iraq has the lowest lane utilization and highest frequency of lane changes. These data are urgently needed nowadays for calibrating and validating the sophisticated programs such as simulated microscopic programs. These data are so important to mimic the reality for driver behaviors in rural roadways.

Assessment Lane Changing Behavior in Local Rural Roads

“…However, when comparing time maneuver of the current study with the results of previous studies (see Table 1. ), the results are close to some researchers such as Hetrick [35] and Al-Jameel [5]. This gives the possibility of using these values as determinants involved in developing the simulation model.…”

“…Al-Jameel [3] developed a simulation model based on limited data taken from three roads around Al-Najaf city. The authors, Al-Jameel [4], and Al-Jameel and Kadhim [5], also studied the same behavior but for specific types of roads which are three-lane section. Therefore, this study tries to enhance both quantity and quality of such data by increasing the number of observed hours and sites in order to give a comprehensive picture for this behavior.…”