DETERMINING PAVEMENT PERFORMANCE DIAGRAM USING CASE STUDY

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MOGHADDAS NEJAD F.; MASKANI R.; IMANINASAB R.

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Journal: Modares Civil Engineering journal Year:2016 | Volume:16 | Issue:1 Page(s): 139-146

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Information Journal Paper

Title

DETERMINING PAVEMENT PERFORMANCE DIAGRAM USING CASE STUDY

Author(s)

MOGHADDAS NEJAD F. | MASKANI R. | IMANINASAB R. | Issue Writer Certificate

Keywords

PAVEMENT BEHAVIOR MODELSQ2

PERFARMANCE DIAGRAMQ2

PAVEMENT CONDITION INDEXQ1

Abstract

To determine the future condition of pavements in a pavement network, the deterioration rate of pavement condition should be estimated with accordance to traffic volume, environmental condition, pavement type and its thickness. The PAVEMENT CONDITION INDEX (PCI) can be used in order to estimate the pavement condition. PCI is a practical index that used in Pavement Management System (PMS) and ranges between 0 to 100. The severity and quantity of pavement disteresses increase as it gets older. As the result of it, PCI decreases with the pavement age increase. PCI can be predicted in future by applying different models. These models consist of deterministic and probalistic models. Deterministic models yield a single value of future pavement condition while the probalistic ones yield a probability for any value of the future pavement condition. Empirical, mechanistic and imperical mechanistic models can be used for pavement condition calculation. Among them empirical models are more practical because of their simpilisity in development and application. In this paper, empirical deterministic model is used to predict the future pavement condition. A lot of research has been done on this subject in the developed country and results are presented presented by performance diagrams. In such diagrams, pavement condition changes within the years are plotted. Performance diagrams can significantly contribute to the road authorities to reduce their costs by right time selection for maintenance and rehabilitation actions, remaining life determination and pavement condition improvement in the road network. In this paper, type, severity and quantity of distresses are collected by visual inspection in Tehran NO.1 district and Sabzevar city. There are up to 5 years old pavements in Tehran district NO.1 which are all rehabilitated or overlayed pavements. In contrast, Sabzevar have mainly initial pavements Rezaa the Rezaa 15 years and consequently are in more deteriorated condition with lower PCI. The least PCI for Tehran NO.1 district is 61 percent and for Sabzevar city is 11 percent. PAVEMENT CONDITION INDEX, as an indicator of pavement condition, is then calculated according to the collected data and Performance diagram, which is the pavement condition change during pavement life, is interpolated using different typical functions including exponentioal, linear and multi polynomial equations up to 3th order on.1th order polynomial diagrams is Rezaa descriptive diagram for Tehran and Sabzevar which are selected based on Adjusted R square and Root mean square error parameters. All the plotting performance diagram, Adjusted R Square and Root Mean Square Error calculation are done by SPSS. Adjusted R square equal to 1 and Root Mean Square Error of 0 are the ideal conditions which means the interpolated diagram passes through the scattered points. To obtain more precise estimation of scattered Rezaa both parameters should be considered as it is done in this paper. The results indicate that if the minimum desirable level of the PAVEMENT CONDITION INDEX is assumed 40, then the useful life of the pavement in the Tehran NO.1 district and Sabzevar city will be estimated 7.6 and 11.5 years, respectively.

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APA: Copy

MOGHADDAS NEJAD, F., MASKANI, R., & IMANINASAB, R.. (2016). DETERMINING PAVEMENT PERFORMANCE DIAGRAM USING CASE STUDY. MODARES CIVIL ENGINEERING JOURNAL, 16(1), 139-146. SID. https://sid.ir/paper/256746/en

Vancouver: Copy

MOGHADDAS NEJAD F., MASKANI R., IMANINASAB R.. DETERMINING PAVEMENT PERFORMANCE DIAGRAM USING CASE STUDY. MODARES CIVIL ENGINEERING JOURNAL[Internet]. 2016;16(1):139-146. Available from: https://sid.ir/paper/256746/en

IEEE: Copy

F. MOGHADDAS NEJAD, R. MASKANI, and R. IMANINASAB, “DETERMINING PAVEMENT PERFORMANCE DIAGRAM USING CASE STUDY,” MODARES CIVIL ENGINEERING JOURNAL, vol. 16, no. 1, pp. 139–146, 2016, [Online]. Available: https://sid.ir/paper/256746/en

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