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| Content Provider | Taylor & Francis Online |
|---|---|
| Author | Khan, Arsalaan Ali, Irfan Alam, Bashir Choudhary, Anil Kumar Raheel, Muhammad Wali, Behram Khan, Muhammad Taimur Khan, Rawid |
| Abstract | Road infrastructure is used by various types of vehicles among which heavy vehicles imposes the most critical loading, causing damage in pavement structure, which ultimately leads to an increased maintenance and rehabilitation costs. During the design of road pavements, each type of vehicle is converted into equivalent standard axle load (ESAL) to consider their impact on road structure. This research study was conducted to quantify the number of overloaded vehicles from the data collected on a critical national highway and to compute the impact of overloaded axle loads on road pavement in terms of ESALs. The variation of truck factor with asphalt layer thickness and subgrade modulus was also studied. The truck factor was calculated according to modified French Pavement Design Guide equation. It was found that the impact of axle configuration on the pavement is significant, i.e. truck factor for 2-axle vehicles was almost 3.33 times the 3-axle vehicles and 5.45 times the 6-axle semi-trailers. It was also observed that the truck factor reduced by almost 47% with a twofold increase in asphalt layer thickness. The subgrade modulus had a very minimal effect on the truck factor. |
| Starting Page | 1 |
| Ending Page | 12 |
| Page Count | 12 |
| File Format | PDF HTM / HTML |
| Journal | Cogent Engineering |
| Volume Number | 5 |
| Issue Number | 1 |
| Language | English |
| Publisher | Cogent |
| Publisher Date | 2018-09-26 |
| Access Restriction | Open |
| Subject Keyword | Axle overload Truck factor Pavement Subgrade modulus |
| Content Type | Text |
| Resource Type | Article |
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