Interactive calculators for Alaska flexible pavement design. Covers subgrade characterization and frost susceptibility screening, pavement section design per the AKFPD Manual, and ESAL traffic loading analysis. All outputs are design aids only — verify results against applicable specifications before use.
Subgrade characterization and frost susceptibility screening per Alaska DOT&PF Material Spec D-1 and the AKFPD Manual. Implements the Casagrande criterion for F1–F4 frost classification, P200 fines input, and the Stefan equation for estimating frost penetration depth using Alaska regional freezing index values.
Flexible pavement section calculator implementing the Alaska Flexible Pavement Design Manual (AKFPD, July 2020). Layered elastic mechanistic design with Alaska DOT&PF material specs — D-1 base course, Select Material Type A subbase, and PG binder grade selection. Includes Excess Fines Design (Chapter 3) and Miner’s Law fatigue analysis.
Equivalent Single Axle Load calculator for flexible pavement traffic analysis. Uses Alaska DOT&PF truck classification categories and AASHTO load equivalency factors. Supports vehicle class mix inputs, directional distribution, design lane factors, and design period ESAL summation. Outputs feed directly into the GT02 pavement section calculator.