Speed Hump Effect on Pavement Condition (Addis Ababa City Road case study)
| dc.contributor.advisor | Epherm, Taddesse (PhD) | |
| dc.contributor.author | Meaza, Girma | |
| dc.date.accessioned | 2020-02-10T07:16:23Z | |
| dc.date.accessioned | 2023-11-11T12:53:34Z | |
| dc.date.available | 2020-02-10T07:16:23Z | |
| dc.date.available | 2023-11-11T12:53:34Z | |
| dc.date.issued | 2020-01 | |
| dc.description.abstract | One of the traffic calming devices used in Addis Ababa, Ethiopia is a speed hump due to low cost and ease of installation. However, these speed humps are randomly placed without proper engineering studies and justification. Due to this, speed fluctuations and the excessive decelerations and accelerations, before and after speed humps, over small distances and infiltration of water to the pavement surface. The pavement condition near to the speed humps show failure and deterioration. The research study was initiated to investigate the effect of speed humps on pavement condition and also to analyze the relationship between speed hump characteristics and pavement condition. The research methodology involved selecting representative samples of road segments that have at least one section with speed humps. For the selected section pavement condition and IRI data collected from AACRA. Road and speed hump characteristics data collected from site direct measurement. Collected data analyzed and compare the pavement condition of these sections with and without speed hump. Regression analysis models were developed to represent the relationships between pavement conditions and hump characteristics. Pothole and Raveling were the most widely observed distress at both sections with and without speed hump. But their frequency was higher on sections with speed humps. Pavement condition index (PCI), in road sections with and without speed hump, was calculated from the pavement condition data. The analysis showed that the presence of speed humps significantly affected the pavement condition, reducing the PCI of the pavement sections by 34 PCI points and increase IRI value by 3.4 IRI points. The relation between speed hump characteristics and pavement condition shows that the speed hump height and density have a negative relation to pavement condition index value and the speed hump width has a positive relation with PCI value. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/20584 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Speed humps | en_US |
| dc.subject | Pavement condition index | en_US |
| dc.subject | International roughness index | en_US |
| dc.title | Speed Hump Effect on Pavement Condition (Addis Ababa City Road case study) | en_US |
| dc.type | Thesis | en_US |