Investigating the effect of overloaded vehicles on asphalt pavement: a case study in India
Abstract Overloading road freight vehicles will accelerate the damaging effect on pavement, result in unfair transport demand, and increase road safety risks for road users. Pavement traffic characteristics are characterised by various vehicle and axle types; these factors are measured in pavement d...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer
2025-06-01
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| Series: | Discover Civil Engineering |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s44290-025-00263-3 |
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| Summary: | Abstract Overloading road freight vehicles will accelerate the damaging effect on pavement, result in unfair transport demand, and increase road safety risks for road users. Pavement traffic characteristics are characterised by various vehicle and axle types; these factors are measured in pavement design employing the truck factor. The effective use of truck factors in pavement design is to convert truckloads into standard axles or load equivalence factors (LEF). A falling weight deflectometer test was conducted in the field to examine the subgrade resilient modulus of pavement layers. Thus, this study investigates the significant effect of overloaded vehicles on the pavement by considering the truck factor for various existing vehicle classes and a set of five different asphalt pavement thicknesses and subgrade resilient moduli values, respectively. For vehicle classes B1 and B2, with an increase in asphalt layer thickness from 20 to 100 mm, the truck factor decreased by almost 49 and 50%, respectively. The truck factor is negligible when the subgrade resilient modulus/stiffness increases. Road transportation authorities may require special attention to overloaded vehicles during the inspection. This study will help highway authorities to make policy decisions on overloaded vehicles. |
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| ISSN: | 2948-1546 |