Abstract
The increasing number of population and vehicles has a negative impact on the capacity and operating condition of road facilities. Congestion and delay are the major problems related to capacity and level of service of road segment in the city. This is a major concern to travelers, administrators, merchants, developers and the community at large. This issue is now days a great concern for Ethiopia and major cities in the country like Ambo town. From these major towns in Ethiopia, Ambo town is now the concern for this study. This study mainly tries to assess the capacity and qualitatively describe the performance and level of service of selected road segments in Ambo town. The research involves both quantitative and qualitative approaches. Quantitative data and analysis were used to determine the level of service of the selected road segments. As a data source both primary data and direct field measurements, mainly volume count, Speed and travel time survey and also secondary data were the main sources of quantitative data. I have selected three representative sections to study the capacity and level of service. And the segments are classified a sub-urban street under interrupted flow type according to the Highway capacity manual 2000. From the analysis the selected segments are performing well in terms of level of service analysis. The lowest level of service is LOS D and the highest level of service is LOS C. The capacity analysis result shows the capacity of the segment is not well at all for the selected segment. To improve the capacity of the segments the Town should improve well designed roadway with sufficient number of lane and lane width and proper improvement of parking areas for vehicles. Keywords: Level of Service, Capacity, HCM 2000 DOI : 10.7176/CER/11-8-01 Publication date :September 30 th 2019
Highlights
LOS analysis gives a qualitative measure of traffic, whereas capacity analysis gives a quantitative measure of a facility
This research contains the evaluation of capacity and Level of Service for selected road segment of Ambo town road facilities
After counting the road segments based on HCM 2000 definition, two representative sections are taken to study the capacity and level of service based on the traffic volume
Summary
This research contains the evaluation of capacity and Level of Service for selected road segment of Ambo town road facilities. At certain times of day,traffic volumes increase, the driving speed decreases and roads get congested.On the other hand, the road capacity is poor which resulted in difficult for mobility and the moving of heavy trucks through the town is the main problem for level of service. Congestion and delay are the major problems related to capacity and level of service of road segment in the town. Traffic congestion in the study area becomes a problem to the road users by limiting the mobility of the road facility and by increasing delay and fuel consumption. Objective of the Study 1.4.1 General objective The overall aim of this research is the assessment on road capacity and level of service the Case of Western Shewa Zone Ambo Town, Oromia Regional State, Ethiopia
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