AASHTOWare Pavement ME Design is the next generation of pavement design software. It is built upon the NCHRP mechanistic-empirical pavement design guide. AASHTOWare Pavement ME Design is a production-ready software tool to support the day-to-day operations of public and private pavement engineers. It reflects a change in the methods and procedures engineers use to design pavement structures by taking advantage of the advances in material mechanics, axle-load spectra and climate data for predicting pavement performance.

It calculates pavement responses (stresses, strains, and deflections) and combines them with other pavement, traffic, climate, and materials parameters to predict the progression of key pavement distresses and smoothness loss over time for hot-mix asphalt (HMA) and Portland cement concrete (PCC) pavements. These outputs are the basis for checking the adequacy of a trial design.

 AASHTOWare Pavement ME Design is a powerful program that incorporates a user-friendly interface with several functional, stability, and performance enhancements. These include improved runtime, automatic update notification, an SI version, inclusion of highway capacity limits, climate data viewers and climate summaries, batch processing, multi-project editing, project compare tool, error checking for individual inputs and forms, provisions for sensitivity analysis, thickness optimization, ability to import back-calculation data, database functionality at enterprise and workstation level, a structural response query tool, and improved reporting.

 

AASHTOWare Pavement ME Design Tools

AASHTOWare Pavement ME Design includes several tools to assist the pavement engineer. These tools are available at https://me-design.com/MEDesign/Home.aspx.  These are the newest tools:

  • Calibrator helps with local calibration efforts so the user can determine whether there is any bias in the predictions; establish the cause of any bias if found through the calibration process; and optimize the calibration coefficient of the transfer function(s) for each distress to eliminate bias and minimize the standard error of the estimate;
  • rePave Scoping provides guidance for deciding where and under what conditions to use existing pavement as part of roadway renewal projects. To access this tool, go to http://pavementrenewal.org/  
  • Backcalculation generates backcalculation inputs from Falling Weight Deflectometer (FWD) files to the software for rehabilitation design. This tool can be licensed separately as well.​

 

“The AASHTO Pavement ME Design software continues to evolve in a way that addresses current transportation agency needs. In particular, the recent additions of a thin asphalt overlay reflection cracking model and a bonded concrete on asphalt design procedure provide solutions for rehabilitating and maintaining existing infrastructure.”

John P. Donahue, Construction and Materials Liaison Engineer, Missouri DOT