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Title:

Sensitivity of M-E PDG Level 2 and 3 Inputs using Statistical Analysis Techniques for New England States

Accession Number:

01157698

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

Implementation of the Mechanistic-Empirical Pavement Design Guide (M-E PDG) by state highway design agencies necessitates transition from their currently followed pavement design practices, along with additional data collection on the large number of inputs incorporated in the M-E PDG. This paper presents a data collection methodology that is representative of a real pavement section instead of a model pavement section or obtaining data from knowledge of engineering principles and experience. A procedure to design experiments with input parameter values such that state highway design specifications can be verified and transformed into M-E design guidelines to aid the implementation process was developed. Statistical analysis of the predicted performance data was conducted to assess the sensitivity of Level 2 and 3 inputs on pavement distresses. The development of a roadmap to data documentation was done by taking up case-study of two states, New Hampshire and Connecticut. Input parameters considered to critically affect pavement distresses were identified from literature review. Data sources for the corresponding M-E PDG inputs were identified and values for input parameters were selected based on variations that practically occur during pavement design, including tolerances on material properties. Analysis of variance was conducted on the predicted performance data. Percentage variation in the predicted distresses explained by each input variable was calculated and sensitivity levels were determined. Correlation ratio eta-square was used due to the deterministic nature of M-E PDG output. Independent data collection recommendations were made for both states on the basis of the study.

Monograph Accession #:

01147878

Report/Paper Numbers:

10-3694

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Ayyala, Dinesh
Chehab, Ghassan R
Daniel, Jo Sias

Pagination:

19p

Publication Date:

2010

Conference:

Transportation Research Board 89th Annual Meeting

Location: Washington DC, United States
Date: 2010-1-10 to 2010-1-14
Sponsors: Transportation Research Board

Media Type:

DVD

Features:

Figures (2) ; References (22) ; Tables (5)

Geographic Terms:

New England

Subject Areas:

Highways; Pavements; I22: Design of Pavements, Railways and Guideways

Source Data:

Transportation Research Board Annual Meeting 2010 Paper #10-3694

Files:

TRIS, TRB

Created Date:

Jan 25 2010 11:53AM