Impacts of Pavement Surface Condition and Geometric Characteristics on Traffic performance at Mid-Block Road segments (In the case of Addis Ababa City)
| dc.contributor.advisor | Bikila Teklu (PhD) | |
| dc.contributor.author | Yematawork Tasse | |
| dc.date.accessioned | 2024-03-12T15:30:22Z | |
| dc.date.available | 2024-03-12T15:30:22Z | |
| dc.date.issued | 2023-12 | |
| dc.description.abstract | This study focuses on investigating the influence of pavement condition and geometric characteristics on traffic performance in different segments of Addis Ababa city. The research was conducted on five collectors and one sub-arterial urban street, specifically examining pavement distress, lane width, lane number, walkway width, road gradient, traffic volume and travel speed. The statistical analysis revealed that certain geometric factors, such as lane number and width, remained consistent across the segments and did not significantly affect travel speed. However, walkway width and road gradient exhibited notable variations in different sections. Further analysis indicated that walkway width had a weak correlation with travel speed, as indicated by a p-value exceeding 0.05. Consequently, walkway width was excluded from the multiple regression model, suggesting that it does not have a significant impact on travel speed between Coca-Cola-Mesalemia and Tikelhaimanot to Mexico Square. In this study, the impact of various factors on travel speed in different sections of Addis Ababa city was examined. Variables such as traffic flow, road grade and pavement condition were found to significantly influence travel speed, as indicated by their p-values being less than 0.05. To compare travel speed between distressed and non-distressed sections, travel speed was conducted during off-peak hours, keeping other factors constant (driver behaviour and environmental factors). The results showed a significant reduction in average speed in the distressed sections compared to the non-distressed sections, with reductions ranging from 53.42% to 68.85%. The study suggests that, in addition to rehabilitation, implementing periodic maintenance and ensuring proper geometric design can greatly improve traffic performance in these road segments and the economic analysis shows that distress rating between failed to very poor has more expense than of a distress rating poor to Good. | |
| dc.identifier.uri | https://etd.aau.edu.et/handle/123456789/2429 | |
| dc.language.iso | en_US | |
| dc.publisher | Addis Ababa University | |
| dc.subject | Pavement condition | |
| dc.subject | Traffic performance and Geometric characteristic | |
| dc.title | Impacts of Pavement Surface Condition and Geometric Characteristics on Traffic performance at Mid-Block Road segments (In the case of Addis Ababa City) | |
| dc.type | Thesis |