Comparing MEPDG Distress Predictions to Automated and Manual Interpretations

摘要: The Mechanistic-Empirical Pavement Design Guide (MEPDG) software was designed on a nationally calibrated basis, thus calibrating the existing parameters to suit local conditions is necessary for accurate distress predictions. process of calibration involves iterating model coefficients until predicted results match desired outcome. This outcome typically associated with monitored pavement results, documented through manual methods and stored in management systems. However, can be very time consuming, sufficient automated data collection are desirable. cracking protocol used by MEPDG consistent definitions provided Long Term Performance (LTPP) program. Due difficulties involved development recognition algorithms survey software, many have made attempts promote alternative protocols that more suitable technologies. Significant efforts enhancement also been taking place, recent research has pulled two directions. paper portrays implementation post-processing tool modify interpretations an surveying called Automated Distress Analyzer (ADA). incorporates wheelpath boundaries order establish means defining cracks regards LTPP. indicated ability replicate nationally-calibrated predictions better than method involving human intervention as well ADA itself.