![]() ![]() What is Mechanistic-Empirical Design?Īnswer: Mechanistic-Empirical design methodology combines engineering knowledge of the mechanical interaction of pavement materials with empirical research to model the response of proposed pavement designs to variables including traffic loading, climate, and material composition. Approval to use the non-standard special provisions (nSSPs) for Partial Depth Recycling (PDR) is obtained from the Office of Asphalt Pavements. What is the procedure for designing a recycled flexible pavement structure?Īnswer: In-Place Recycling ( PDR, FDR-FA, FDR-C, and Pulverization) may be used on projects. For more information, refer to Section 2.1 in the LCCA Procedures Manual (PDF). How does Life Cycle Cost Analysis (LCCA) relate to Flexible Pavement design?Īnswer: LCCA requires analysis of designs with varying design lives, strategies, and pavement materials. The Office of Pavement Engineering developed the CalFP v.1.1 program for new flexible pavement design calculations and the CalAC v.3.2 for flexible pavement rehabilitation design calculations. Is there any software that we can use for Flexible Pavement design calculations?Īnswer: Yes. ![]() Refer to HDM Topic 633 for new design procedures and HDM Topic 635 for rehabilitation design procedures. How do we design Flexible Pavement?Īnswer: The current Department standard for both rehabilitation and new flexible pavement design is an empirical method based on relationships developed from several test tracks and experience with actual pavement performance. Note: Both the Long Life Pavement Design FAQ are being developed.
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