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Title:Revised Condition Rating Survey Models to Reflect All Distresses: Volume 1
Author(s):Ozer, Hasan; Ziyadi, Mojtaba; Feng, Yichen
Subject(s):Pavement management
pavement condition
distress
CRS
Abstract:Pavement condition assessment plays a key role in infrastructure programming and planning processes. Similar to other state agencies, the Illinois Department of Transportation (IDOT) has been using a system to evaluate the condition of pavements since 1974. Since 1994–1995, IDOT has been using a system to project future pavement performance as well. The condition rating survey (CRS) value is the index between 1 (failed) and 9 (new), representing the overall condition of pavement. The purpose of this study was to update and revise the existing CRS calculation and prediction models using new data. To accomplish the goals of the study, the CRS data was received for the years 2000–2014. The data was initially processed and cleaned in preparation for modeling. CRS prediction models were prepared for Interstate and Non-Interstate pavement types. The two-slope model was used for all asphalt-surfaced pavements, whereas a new model was proposed for concrete-surfaced pavements. The proposed model for concrete-surfaced pavements is a nonlinear survival type designed to capture the distinct deterioration patterns of concrete pavements with little to no reduction in CRS—followed by a rapid and linear deterioration and a flatter region at the end, once the pavement is saturated with damage. The CRS calculation models were updated to incorporate new distresses. Based on the literature review and the analysis of distress composition, it was found that IDOT’s distress ratings are generally in agreement with the ASTM standard—with the exception of alligator cracking. A database containing recorded distresses, used by experts, was referenced to add missing distresses, such as alligator cracking, for each Interstate model.
Issue Date:2018-04
Publisher:Illinois Center for Transportation/Illinois Department of Transportation
Citation Info:Ozer, Hasan, Mojtaba Ziyadi, and Yichen Feng. 2018. Revised Condition Rating Survey Models to Reflect All Distresses: Volume 1. A report of the findings of ICT-R27-150. Illinois Center for Transportation Series No. 18-002. Research Report No. FHWA ICT-18-002. Illinois Center for Transportation, Rantoul, IL.
Series/Report:FHWA-ICT-18-002
Genre:Technical Report
Type:Text
Language:English
URI:http://hdl.handle.net/2142/99626
DOI:0197-9191
Sponsor:IDOT-R27-150
Rights Information:No restrictions. This document is available through the National Technical Information Service, Springfield, VA 22161.
Date Available in IDEALS:2018-04-06


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