विधियों की तुलना करें

	पेवमेंट एमई डिज़ाइन	यातायात प्रवाह (LWR मॉडल)	यूनिट हाइड्रोग्राफ
क्षेत्र	सिविल इंजीनियरिंग	सिविल इंजीनियरिंग	सिविल इंजीनियरिंग
परिवार	Process / pipeline	Process / pipeline	Process / pipeline
उद्भव वर्ष	2008	1955	1932
प्रवर्तक	AASHTO (American Association of State Highway and Transportation Officials)	M. J. Lighthill and G. B. Whitham	L. K. Sherman
प्रकार	Performance-prediction model for asphalt pavement design	Macroscopic traffic flow modeling using conservation laws	Linear transformation from rainfall to streamflow
मौलिक स्रोत	AASHTO (2008). Mechanistic-Empirical Pavement Design Guide: A Manual of Practice. American Association of State Highway and Transportation Officials.	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.	Sherman, L. K. (1932). Streamflow from rainfall by the unit graph method. Engineering News-Record, 108(14), 501-505.
उपनाम	MEPDG, Pavement design, Fatigue and rutting	LWR model, Traffic wave, Kinematic wave theory	UH, Rainfall-runoff, Hydrograph synthesis
संबंधित	3	3	3
सारांश	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.	The unit hydrograph (UH) is a linear transformation that converts rainfall excess into streamflow for a watershed. Introduced by Sherman in 1932, the UH assumes that rainfall-runoff response is linear and time-invariant, enabling synthesis of flood hydrographs from design storms for dam spillway design and flood risk assessment.