Abstract
Objectives: In the present study, evaluation of Relative Importance Index (RII) of sixteen pavement performance indicators has been carried out. Methods/Statistical Analysis: For the study total sixteen indicators are considered which includes structural and functional indicators. Relative Importance Index is calculated by obtaining opinion of academician and professional experts from the field of transportation engineering. Questionnaire Survey methodology has been adopted for collection of experts opinion. Five linguistic terms are used for the same, which are, ‘Very important’, ‘Important’, ‘Average’, ‘Less important’ and ‘Not important’. Findings: It has been observed from the values of RII, that, in case of flexible pavement deflection and potholes get maximum index followed by longitudinal cracking and Rutting. In case of rigid pavement Longitudinal cracking get maximum value followed by Transverse cracking. Application/Improvements: The values obtained from the study can be used for pavement condition evaluation incorporation with experimental evaluation of pavement surface condition for rating of pavements. Keywords: Expert Opinion, Functional Indicators, Pavement Performance Indicators, Relative Importance Index, Structural Indicators
Highlights
Pavement condition evaluation (PCE) is a part of pavement management system
For rigid pavement maximum Relative Importance Index (RII) is obtained for longitudinal cracking 0.94 followed by transverse cracking 0.87 and minimum is for polished aggregates that are 0.48
An evaluation of pavement performance is done by using Structural and functional Indicators
Summary
Pavement condition evaluation (PCE) is a part of pavement management system. PCE is done by study of structural and functional indicators. The load carrying capability of the pavement structure decreases due to structural failure. Insufficient thickness, different types of cracks, distortion and disintegration leads to Structural deficiency. Rough driving surface and discomfort to user indicates functional deficiency. Less surface friction and bad texture, hydro planning and splash from wheel path, rutting and excess surface disintegration are the causes of functional deficiency. Corrugation, faulting, blow up, settlement; heaves etc. The level of service provided by the road to the user is determined by functional condition. Vehicle Operating Costs is affected by the level of service[1]
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