Segmental Assessment Oflevel of Traffic Congestion on Kality Ring Road to Dukem Bridge

Sebero, Solomon Shanko (2015) Segmental Assessment Oflevel of Traffic Congestion on Kality Ring Road to Dukem Bridge. Masters thesis, Addis Ababa University.

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Transport plays an important role in economic growth and development, though most types cause air pollution, traffic congestion and utilize large amount of land. While it is heavily subsidized by government, efficient planning of transport is essential to traffic flow and restrains urban sprawl. Now a days traffic congestion is increasing and becoming a challenge in the transportation sector. Larger cities and major trunk roads along the most business activity corridors are facing the traffic congestion problem due to increased population and in turn travel demand. Traffic congestion directly affects commuters with an excessive delay in a queue, increased fuel cost, and delay for loss in productive hours. It also affects the living standard of cities and the environment. Therefore, traffic congestion causes upon road users and cities as well as heavy occupancy roads to incur a significant amount of money for both economic and social costs. Assessing the level of the traffic congestion and understanding how much time effect and cost are being incurred due to traffic congestion and the probable cause of the same; hence, it will be important to make appropriate decisions and seek possible implementable mitigation measures. Following the economic and population growth and the high demand for import-export trade activities in Ethiopia, traffic congestion challenges has emerged and the challenge is even growing faster in the nation’s eastern active major trunk road corridor of Addis – Dukem –Debre Zait - Modjo road segment. This road segment is part of the country’s one of the most congested road corridor. In this study, the level of traffic congestion in part of this road segment is assessed and quantified based on the concepts of Capacity and Level of Service (LOS) on the existing road. Moreover, the study evaluated the relation between traffic congestion and occurrence of traffic accident as one of the negative consequences. In addition, the study has identified the locations of accident black spots and their relations with delay and travel time for different categories of vehicle groups. It also evaluated the aggravating factors such as proportions of heavy trucks with the performance measures in the route. The study segments in general exhibited Level of Service, LOS E. Traffic accidents and accident black spots in both city and inter-city sections of the selected segments are clearly aggravating the effects of traffic congestion and proportions of heavy and long vehicles. The terrain conditions of the route as well as the location of bottleneck relative to upgrades or downgrades have also significant effect on the occurrence of road traffic congestions in the selected corridor. The study proposed High, Medium and Low cost engineering countermeasures which are recommended to reduce the level of Road Traffic Congestion and its associated impacts either through traffic management procedures or building better infrastructure development along the segment.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Civil Engineering
Subjects: H Social Sciences > HE Transportation and Communications
T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TE Highway engineering. Roads and pavements
T Technology > TL Motor vehicles. Aeronautics. Astronautics
Divisions: Africana
Depositing User: Andriamparany Edilbert RANOARIVONY
Date Deposited: 28 Nov 2018 07:30
Last Modified: 28 Nov 2018 07:30

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