Abstract:
Intelligent Transportation System (ITS) is new for our country and other developing countries.
However most developed countries already applied the system into their road network and have
gained a significant advantage in reducing traffic related problems including traffic congestion.
The application of ITS is vast and this research is mainly concerned on its application in the
management of traffic congestion considering a specific intersection. Because of the rapid
growth and the corresponding increase of vehicles number, traffic congestion in recent times has
become a chronic problem in Addis Ababa. Urban areas are characterized by interrupted flows
facility and intersections play a significant role in congestion related analysis.
The intersection that was considered for the study was a roundabout at Bole Michael. Like most
of the intersections in the city it was affected by congestion. Different analyses are performed to
measure the performance of the intersection with the help of Sidra Intersection Software. The
data used for the analysis is six hours traffic of which three hours is in the morning and three
hours is in the midday. From output of the software the intervals which show congestion are
identified.
Two methods were checked as ITS methods. These are roundabout metering and the diversion of
left turn traffic from minor roads during congestion time. After applying the methods, the
performance of the intersection is estimated with the assistance of Sidra Intersection. The result
is compared to the performance before the method is applied. The result obtained is from slight
to significant increase in the performance of the intersection.
