Present serviceability index
 | This article or section is in a state of significant expansion or restructuring. You are welcome to assist in its construction by editing it as well. If this article or section has not been edited in several days, please remove this template. If you are the editor who added this template and you are actively editing, please be sure to replace this template with {{in use}} during the active editing session. Click on the link for template parameters to use.
This article was last edited by Pirehelokan (talk | contribs) 4 years ago. (Update timer) |
Present Serviceability Index (PSI) is a pavement performance measure. Introduced by AASHTO, the PSI is one of the most widely used pavement performance indicators after PCI and IRI.[1][2] This performance indicator ranges between 0 and 5, 0 representing a failed pavement and 5 an excellent one. Since the PSI entails slope variance, it is correlated with performance indicators related to roughness such as IRI.[3]
History
The PSI was developed based on AASHO Road Test Present Serviceability Rating (PSR). These experiments were carried out by the American Association of State Highway and Transportation Officials (AASHTO) from 1956 to 1961.[4] Unlike the PSR, which was a ride quality rating that required a panel of observers to ride in a car over the pavement of interest, the PSI does not require a panel of experts. Therefore, it was a more practical approach for large-scale pavement networks.
References
- ^ Piryonesi, S. M.; El-Diraby, T. E. (2020) [Published online: December 21, 2019]. "Data Analytics in Asset Management: Cost-Effective Prediction of the Pavement Condition Index". Journal of Infrastructure Systems. 26 (1): 04019036. doi:10.1061/(ASCE)IS.1943-555X.0000512.
- ^ "Piryonesi, S. M. (2019). The Application of Data Analytics to Asset Management: Deterioration and Climate Change Adaptation in Ontario Roads (Doctoral dissertation)".
- ^ Hall, Kathleen; Muñoz, Carlos (1999-01-01). "Estimation of Present Serviceability Index from International Roughness Index:". Transportation Research Record. doi:10.3141/1655-13.
- ^ "Transportation Research Board (2007). Pavement Lessons Learned from the AASHO Road Test and Performance of the Interstate Highway System, Washington DC" (PDF).
{{cite web}}: CS1 maint: url-status (link)