تقييم و تطوير بعض التقاطعات في مدينة الحلة

الملخص EN

Highway and its intersection in every country are the mirror of the civilization and the scale of the progress through out the highway quality , number and the traffic facilities in the intersection .

An intersection define as an area shared by two or more roads , whose main function is to provide for the change of route directions .

Intersection vary in complexity from a simple intersection which has only two roads crossing at a right angle to each other , to amore complex at which three or more roads cross within the same area .

This research effort to evaluate and improve Nader and Al thowra intersections .

Traffic volume data have been collected for each approach and every movements ( Through , Left and Right ) within peak hour volume in the (pm , am) period for each intersection .

Traffic volume classification was don due to vehicles types which they are moving throw the intersections .

data was collected by using photographic technique method then translated it in tables and figures .Data was analysis in order to estimate level of service ( LOS) for each intersection by using Highway Capacity System ( HCS 2000) .

Data analysis results indicate that LOS type for each intersection by using Highway Capacity System ( HCS 2000) .

Data analysis results indicate that LOS type F for the both intersections .

the research attempt to improve the geometric design for the both intersections and the analysis led to rise LOS to type C.

the study recommended to prevent stopped vehicles and buses in the intersections area with prepare garage outside them as well as protected right movement by using slip road before stopped area especially in Nader intersection also operating them with traffic light according to traffic volume and type of movement in each directions to reduce delay time and traffic accident probability.