Some Traffic Characteristics of Rural Roads in Iraq

Abstract

Nowadays, modeling traffic characteristics are significant in evaluating traffic facilitates such as normal section, weaving and merging sections. Lane changing and lane utilization are important traffic characteristics that are widely studied. This study therefore is focused on both of these characteristics. 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 behavior is different in terms of lane utilization in Iraq from other countries and the same behavior 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 sophisticated programs such as simulated microscopic programs. These data are significant to mimic the reality for driver behaviors in rural roadways.