CalME: Caltrans Mechanistic-Empirical Structural Analysis Program for Flexible Pavements

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Welcome to CalME, a web application for analyzing pavement structural sections using the Mechanistic-Empirical (ME) methodology. This is the official structural analysis program used by Caltrans (California Department of Transportation) for flexible pavements. It is used for new construction and rehabilitation including overlays.

The Pavement Program’s Office of Asphalt Pavements in the Division of Maintenance, partnering with the University of California Pavement Research Center (UCPRC), developed this program, specifically for the Caltrans highway system and traffic conditions. The models are calibrated using pavement condition data collected over the past 20 to 30 years in PaveM. Caltrans would like to acknowledge the contributions and valuable feedback from industry partners, pavement experts, and academia. Thank you!

CalME is a dynamic tool and is expected to continue to evolve along with the state-of-the-art pavement technology. A list of the major changes since the release of CalME v3.0 and the associated decision documents can be found here.

If you need to access the prevous version, you can find the link at the top left corner of this page under "Useful Links".