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| Pavement ME Design× | Trafikflow (LWR-model)× | |
|---|---|---|
| Fagområde | Byggeteknik | Byggeteknik |
| Familie | Process / pipeline | Process / pipeline |
| Oprindelsesår≠ | 2008 | 1955 |
| Ophavsperson≠ | AASHTO (American Association of State Highway and Transportation Officials) | M. J. Lighthill and G. B. Whitham |
| Type≠ | Performance-prediction model for asphalt pavement design | Macroscopic traffic flow modeling using conservation laws |
| Oprindelig kilde≠ | AASHTO (2008). Mechanistic-Empirical Pavement Design Guide: A Manual of Practice. American Association of State Highway and Transportation Officials. link ↗ | Lighthill, M. J., & Whitham, G. B. (1955). On kinematic waves I. Flow movement in long rivers. Proceedings of the Royal Society A, 229(1178), 281-316. DOI ↗ |
| Aliasser | MEPDG, Pavement design, Fatigue and rutting | LWR model, Traffic wave, Kinematic wave theory |
| Relaterede | 3 | 3 |
| Resumé≠ | The Mechanistic-Empirical Pavement Design Guide (MEPDG or Pavement ME) is a modern method for designing asphalt pavements that predicts performance (rutting, cracking) using mechanistic stress analysis combined with empirical distress models. Developed by AASHTO in 2008 as a successor to the 1993 AASHTO Empirical Guide, this approach provides better accuracy and enables climate-based, site-specific design. | The Lighthill-Whitham-Richards (LWR) model is a macroscopic traffic flow model that treats traffic as a compressible fluid, applying conservation of vehicles and a flow-density relationship. Introduced independently by Lighthill and Whitham (1955) and Richards (1956), the model predicts traffic wave propagation, congestion formation, and bottleneck behavior on highways. |
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