Improvement of Traffic Flow on Arterials In Mansor City, Baghdad In Iraq By Using Microsimulation Model

Abstract

The rapid rise of population in Al-Mansour's as well as the increasing number of vehicles and retail malls, results in an increase in the number of daily trips, which affects traffic flow and leads to traffic congestion, particularly in the downtown region. As a result, the goal of this study is to evaluate traffic performance in a city by proposing well intersections performance. Because ideal saturation flow is the most important element influencing driver behavior, it has been changed to be the average of saturation flow measurements taken in the field (2200 vphgpl). Following that, some improvement suggestions are made, ranging from modifying time signals to changing intersection geometrics. Manual calculation is used to determine the traffic parameters. Field survey is used to determine geometric data. The traffic data measured in the field (1.27 (v/c) degree of saturation, 154 second latency, and L.O.S is F) was compared to the improvement generated by SIDRA INTERSECTION. When geometric data was changed (0.98 (v/c) degree of saturation, 46 seconds delay, and L.O.S equals D), there was a significant improvement in traffic for the intersection. This disparity could be explained by the ineffectiveness of leveraging the geometric features of this pirtucular intersection to alleviate traffic congestion