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International Journal for Research Trends and Innovation
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ISSN Approved Journal No: 2456-3315 | Impact factor: 8.14 | ESTD Year: 2016
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Impact Factor : 8.14
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| Paper Title: | Development of Fixed Time Traffic Signal Design for selected Roundabout, the case of Gerji-Imperial in Addis Ababa |
| Authors Name: | Abdi Mohammed Ibrahim , Kathiresan Karuppanan |
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| Author Reg. ID: |
IJRTI_183205
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| Published Paper Id: | IJRTI2207216 |
| Published In: | Volume 7 Issue 7, July-2022 |
| DOI: | |
| Abstract: | Traffic congestion is a critical problem in Addis Ababa due to the fast growing economy, car ownership and population in the country. It has negative environmental and health consequences as a result of increased fuel consumption and air pollution. The critical traffic problems and accidents are majorly observed in the intersection without traffic signal. To avoid such traffic problems, there is a need of assessment of current traffic condition and conducted level of service for the intersection and round about is very important. The objective of the study was to develop Traffic Signal design for Gerji-Imperial Roundabout in Addis Ababa after assessing the current conditions and the level of service around there. To conduct this study, first the traffic was counted manually for seven days, and then the peak hour volume was taken for traffic signal design. Fixed time signal approach using Webster method was used for signal design. Before the design is come up, the assessment was conducted. The major problems in Gerji-Imperial Roundabout is geometric or topography, traffic conflicts in the round about unexpectedly, conflict between pedestrian and vehicle and it hosted the traffic police man in the four approach. In Level of service assessment, the quality of Gerji-Imperial Roundabout was investigated in terms of delay and the comparison is done with the condition of after signal design. Based on the HCM, the Gerji-Imperial Roundabout about is under ‘F’ which is highly delayed with more than 50 second whereas with this second the delay condition would be lower and indicated by ‘E’ for case of signalized condition. This show that signal design has better level of service than round about in case Gerji-Imperial. The result of signal design in Gerji-Imperial Roundabout was based on the peak hrs, volume and the total cycle length is 180 second with effective green time of 43, 41, 43 and 39 second in Bole (A), Gerji (B), Megenagna (C) and Hayahulet (D) approaches. The yellow interval for each approach was 3 seconds. Finally, it is advisable to design traffic signal for any round about is advisable to give better level of service as well as to minimize traffic accident and conflict. |
| Keywords: | Delay, Gerji-Imperial, Level of Service,Signal Design, Traffic Signal. |
| Cite Article: | "Development of Fixed Time Traffic Signal Design for selected Roundabout, the case of Gerji-Imperial in Addis Ababa", International Journal of Science & Engineering Development Research (www.ijrti.org), ISSN:2455-2631, Vol.7, Issue 7, page no.1367 - 1389, July-2022, Available :http://www.ijrti.org/papers/IJRTI2207216.pdf |
| Downloads: | 000204919 |
| ISSN: |
2456-3315 | IMPACT FACTOR: 8.14 Calculated By Google Scholar| ESTD YEAR: 2016 An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 8.14 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator |
| Publication Details: |
Published Paper ID: IJRTI2207216
Registration ID:183205
Published In: Volume 7 Issue 7, July-2022
DOI (Digital Object Identifier):
Page No: 1367 - 1389 Country: Adama, Oromia, Ethiopia Research Area: Transportation Engineering Publisher : IJ Publication Published Paper URL : https://www.ijrti.org/viewpaperforall?paper=IJRTI2207216 Published Paper PDF: https://www.ijrti.org/papers/IJRTI2207216 |
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ISSN: 2456-3315
Impact Factor: 8.14 and ISSN APPROVED,
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