👉There are two major Pavement Design Methods
🚧1. Empirical Design
⏺This is most used in the United States, developed by AASHTO.
⏺This method is based on historical performance data.
⏺It analyzes what worked in the past and assumes it to work under similar conditions.
⏺For example, AASHTO 1993 uses traffic load (ESALs), subgrade CBR, Subgrade numbers, and layer coefficients for the design of pavements.
🚧2. Mechanistic-Empirical Design (e.g., MEPDG)
⏺This combines mechanics (stress, strain) with empirical calibration to local conditions.
⏺It simulates how pavement layers deform or crack under traffic and climate.
⏺Helps design cost-effective pavements with longer service life.
@etconp
🚧1. Empirical Design
⏺This is most used in the United States, developed by AASHTO.
⏺This method is based on historical performance data.
⏺It analyzes what worked in the past and assumes it to work under similar conditions.
⏺For example, AASHTO 1993 uses traffic load (ESALs), subgrade CBR, Subgrade numbers, and layer coefficients for the design of pavements.
🚧2. Mechanistic-Empirical Design (e.g., MEPDG)
⏺This combines mechanics (stress, strain) with empirical calibration to local conditions.
⏺It simulates how pavement layers deform or crack under traffic and climate.
⏺Helps design cost-effective pavements with longer service life.
@etconp
Comments
Be the first to add a comment
Log in to comment