Optimal Change-Point Analysis of Pavement Condition Data for Identification of Homogeneous Sections
Publication: Journal of Transportation Engineering, Part B: Pavements
Volume 149, Issue 1
Abstract
This paper examined the applicability of the pruned exact linear time (PELT) algorithm for optimal change-point analysis to delineate pavement into homogeneous sections based on road condition. The primary objective of the study was to address some of the limitations associated with existing delineation approaches, such as the AASHTO cumulative difference approach (CDA) and the Bayesian binary segmentation method. The paper presents a mathematical framework for the optimal change-point analysis of pavement deflection data collected on a runway of an international airport. Through an analytical comparative study, the paper demonstrated how the proposed approach is better than existing delineation methods in terms of accuracy in identifying the change points, flexibility in the choice of the number of homogeneous sections, and computational time. The approach provides an opportunity for practitioners and road agencies to integrate their experience and knowledge of the road network into decision-making about the location of change points and their count without compromising computational accuracy. The proposed method was found to be robust because the solutions are independent of the parameters chosen for the analysis.
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Data Availability Statement
Some data models or codes that support the findings of this study are available from the corresponding author upon reasonable request—specifically, the surface deflection data used in the study, the R code for modified CDA, the R code for the Bayesian segmentation method, the R code for the optimal change-point method, and the algorithm and flowcharts for all three delineation methods.
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Information & Authors
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Published In
Journal of Transportation Engineering, Part B: Pavements
Volume 149 • Issue 1 • March 2023
Copyright
© 2022 American Society of Civil Engineers.
History
Received: Nov 11, 2021
Accepted: Oct 5, 2022
Published online: Dec 28, 2022
Published in print: Mar 1, 2023
Discussion open until: May 28, 2023
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Cited by
- Naga Siva Pavani Peraka, Krishna Prapoorna Biligiri, Satyanarayana N. Kalidindi, Multi-Parametric Delineation Approach for Homogeneous Sectioning of Asphalt Pavements, Infrastructures, 10.3390/infrastructures8100153, 8, 10, (153), (2023).