The two teachers in the Department of Road and Transportation Engineering at the College of Engineering at the University of Al-Qadisiyah, Dr. Ihsan Ali and Dr. Hamsa Abbas Nayef, published their tagged research (Research title: Evaluation of the temporal instability of the severity of injury to motorists at intersections without signals that are controlled by remote control The prioritization route: a stochastic parameter approach with heterogeneity in means and variances) in the reputable international journal Accident Analysis and Prevention.

The research aims to study the determinants of the severity of injury to drivers involved in collisions at undefined intersections that are controlled by road-granting signals (priority).

The research included the use of mixed logarithmic models in three ways, namely, random parameters, random parameters with heterogeneity in the mean, and random parameters with heterogeneity in the means and variances.

The study found that 28 variables of indicators were temporarily unstable over four years of collisions, such as driver’s gender, collision time, rear-end collision, side collisions, right-angle collision type, vehicle movement at the time of collision, and collision time. While many variables were stable over the same period, for example, collisions within urban areas were tentatively stable over four years, collisions in the dry pavement condition were tentatively stable over three consecutive years.

It is noteworthy that the Journal of Accident Analysis and Prevention
It is located in the first quarter, with an impact factor of 6.3, according to the Clarivate website, and a site score of 8.9, according to the Scopus website. It is published in the Elsevier magazine.