Reduction the traffic congestion-induced vehicle emission by construction new road: Case Study in Baghdad City

Abstract

Abstract Numerous regions in the city of Baghdad experience the congestion and traffic problems. The study area is located at Karkh side in Baghdad City. The geographical area situated among several streets; 14th July Street (section in Ring road No. 1), Demishq Street, Mansure Street and 14th Ramadan Street. The main intersections in these streets are; Shaljya Intersection, Demishq Intersection, Dilal Intersection, Gailani intersection, and Topji Intersection. The proposed road starts from the Gailani intersection and jointed with 14th July Street (Ring road No. 1) with length (1.9 Km). The study area is facing a low level of service during traffic congestion resulting from an inefficient and poor road network. The main purpose is to study constructing a new road to reduce the environmental and congestion impacts on the transportation system at selected roads. The percentages of expected generated traffic that will be serviced in the suggested rout are 23% and 52 % from the peak hourly volume counting in location 1 (Shaljya Intersection). On the other hand, at location 2 (Demishq Intersection), the percentages of generated traffic transported to the suggested rout are 22% and 23%. By using Highway Capacity Manual (HCM), the required lanes for the suggested road are 3 lanes for each direction. According to findings, construction of the suggested road is important to improve the road network in term the traffic and reduction the vehicle emissions at present routs.