Accounting for Endogeneity in Maintenance Decisions and Overlay Thickness in a Pavement-Roughness Deterioration Model

Gayah, Vikash V.; Madanat, Samer

doi:10.1061/(asce)is.1943-555x.0000385

Cited by 8 publications

(2 citation statements)

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“…Usually, componentization and the underlying dynamics between the components have been excluded in research, and the analysis has focused on one particular asset component, such as pavements (e.g., Yu et al 2008;Gopalakrishnan et al 2009;Gopalakrishnan 2012;Bianchini 2014;Anastasopoulos and Mannering 2014;Gayah and Madanat 2017), or on a particular deterioration phenomenon (e.g., Shekarchi et al 2011;Saether 2011). However, accounting for infrastructure as a capital good and maintenance of infrastructure have been subjects of considerable debate in the literature (Pallot 1990(Pallot , 1997Lapsley et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Service Value and Componentized Accounting of Infrastructure Assets

Leviäkangas

Pargar

Sirvio³

et al. 2019

J. Infrastruct. Syst.

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Asset management is a strategic tool for maintaining the value of an asset at a level that is satisfactory for users, asset owners, and taxpayers. This paper introduces the concept of service value. The concept is applied following the recommendations of the Organisation for Economic Cooperation and Development (OECD): service value equals the value of economic benefits generated by an asset. It is shown how alternative value accounting methods result in different asset values. The present value method, as recommended by accounting practitioners and in line with the concept of service value, is more appropriate for asset management purposes than the perpetual inventory method (PIM), despite the fact that the latter is more widely used. The impact of correct asset and service value accounting extends well beyond project and investment program management levels to the national accounting system of fixed capital. Incorrect asset management accounting may lead to serious under-or overestimation of investments and repair debt.

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Section: Introductionmentioning

confidence: 99%

Service Value and Componentized Accounting of Infrastructure Assets

Leviäkangas

Pargar

Sirvio³

et al. 2019

J. Infrastruct. Syst.

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“…In addition, from the perspective of research approach, the previous researchers did not address the potential issues of endogenous overlay design and unobserved heterogeneity in model estimation. These issues may result in biased and inconsistent prediction of the pavement deterioration process, which in turn may lead to erroneous decisions in pavement maintenance and rehabilitation (M&R) policy making ( 13–15 ).…”

mentioning

confidence: 99%

Modeling the Effects of Asphalt Overlay Design on Pavement Distress Initiation with Random Parameters Hazard-Based Duration Models

Xin

Zhang

2022

Transportation Research Record: Journal of the Transportation R

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Pavement deterioration model is a key input to a pavement management system that optimizes pavement maintenance and rehabilitation (M&R) planning. As a typical pavement M&R technique, asphalt overlay is commonly implemented to restore pavement performance. However, the impact of its design factors on pavement deterioration is not well documented in existing publications. This study aimed to investigate the effects of asphalt overlay design on the initiation of various types of cracking and severe rutting with consideration of endogenous bias and unobserved heterogeneity. A series of random parameters Weibull duration models were developed based on 317 asphalt overlay projects, which were collected from the Long-Term Pavement Performance program. Endogenous overlay design, overlay thickness, milling indicator, and overlaid pavement deflection were identified to represent their heterogeneity caused by unobserved factors over highway sections. Based on analysis results, the endogenous overlay design was shown to underestimate the service life of overlaid pavement. The occurrence probability of overlaid pavement distress would significantly decrease with an increase of asphalt overlay thickness. The application of 30% reclaimed asphalt pavement materials would retard the occurrence of severe rutting, but accelerate the occurrence of all types of cracking. Relative to asphalt overlay, milling and overlay can significantly reduce the hazard rate of severe rutting and all types of cracking. In addition, existing pavement condition, overlaid pavement deflection, traffic volume, and climate factors were identified to have significant effects on the distress initiation in overlaid pavements.

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