Pavement Permanent Deformation Rutting Calculator
Pavement Distress Engineering: Model cumulative plastic shear deformation and surface rut depth ($RD$) in asphalt concrete and subgrade layers across design traffic lifespans.
Traffic Repetitions & Environment
Asphalt Layer Properties
Subgrade Foundation
Permanent Rut Depth & Serviceability
Total Surface Rut Depth ($RD_{\text{tot}}$)
-- in
-- mm
FHWA Rutting Status
Acceptable (< 0.50")
Threshold: 0.50 in (12.5 mm)
Asphalt Layer Rut ($RD_{\text{ac}}$)
-- in
-- mm (-- % of total)
Subgrade Rut ($RD_{\text{sub}}$)
-- in
-- mm (-- % of total)
Failure Mechanism Diagnostics:
• Asphalt plastic strain ratio $\varepsilon_p / \varepsilon_r$: --
• Cumulative AC microstrain $\varepsilon_p$: -- µε
• Hydroplaning hazard risk: Low
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