Longitudinal Local Calibration of MEPDG Permanent Deformation Models for Reconstructed Flexible Pavements Using PMS Data

Afzal Waseem ； Xian-Xun Yuan

《International Journal of Pavement Research and Technology》 6卷4期 (2013/07) Pp. 304-312

https://doi.org/10.6135/ijprt.org.tw/2013.6(4).304

並列摘要

After almost two decades of intense research and development for mechanistic-empirical design, the AASHTO-supported Mechanistic-Empirical Pavement Design Guide (MEPDG) was finally endorsed as an interim guide for trial uses. However, local calibration of the distress models in the design guide is considered to be an essential exercise for any transportation agency before it formally adopts the MEPDG for practical design use. This paper presents the results from Ontario's local calibration of the permanent deformation models in the MEPDG. The study focused on reconstructed and new flexible pavements using field evaluation data in the pavement management system (PMS) maintained by Ontario's Ministry of Transportation (MTO). A unique feature of the study was the longitudinal calibration; that is, the local calibration parameters in the three permanent deformation models were adjusted to predict the field observed rut depths over the whole life span of a pavement section. To avoid multiple local optima of residual sum of squares (RSS) in the local calibration process, constant proportions of ruts in different structural layers were assumed to obtain the layer rut depths. A macro-based automatic procedure was developed for the local calibration. A comparison of the longitudinal calibration and pooled local calibration demonstrated the importance of the longitudinal calibration in the quantification of uncertainties involved in local calibration and the significance to pavement reliability.

並列關鍵字

Flexible pavement ； Local calibration ； Mechanistic-Empirical pavement design guide (MEPDG) ； Permanent deformation models

參考文獻

AASHTO (2010). Guide for the Local Calibration of the Mechanical-Empirical Pavement Design Guide, American Association of State Highway and Transportation Officials, Washington DC, USA.

Banerjee, A., Aguiar-Moya, J.P., and Prozzi, J.A. (2009). Calibration of mechanistic-empirical pavement design guide permanent deformation models. Transportation Research Record, No. 2094, pp. 12-20.

Li, J., Pierce, L.M., and Uhlmeyer, J. (2009). Calibration of flexible pavement in mechanistic-empirical pavement design guide for Washington State. Transportation Research Record, No. 2095, pp. 73-83.

Hoegh, K., Khazanovich, L., and Jense, M. (2010). Local calibration of Mechanistic-Empirical pavement design guide rutting model: Minnesota road research project test sections. Transportation Research Record, No. 2180, pp.130-141.

Jadoun, F. M. (2011). Calibration of the Flexible Pavement Distress Prediction Models in the Mechanistic Empirical Pavement Design Guide (MEPDG) for North Carolina. Doctor of Philosophy, North Carolina State University, Raleigh, NC, USA.