Update of Condition Rating Survey (CRS) Calculation/Prediction Models Phase 3. CRS Prediction Model Development

Heckel, Laura; Ouyang, Yanfeng

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https://hdl.handle.net/2142/45994 Copy

Description

Title

Update of Condition Rating Survey (CRS) Calculation/Prediction Models Phase 3. CRS Prediction Model Development

Author(s)

• Heckel, Laura
• Ouyang, Yanfeng

Issue Date

2007-08

Keyword(s)

CRS, prediction models, deduct values

Abstract

The Illinois Department of Transportation (IDOT) determines a Condition Rating Survey (CRS) value for each roadway section using CRS calculation models. After the rating values have been determined, IDOT uses prediction models to estimate the condition of the pavements in the future. The objective of Phase 3 was to revise the existing prediction models and develop new models for pavement types that currently have none. Models were created or revised for 28 pavement types. Both D-cracking and the use of SMART (thin overlays) are known to reduce the expected life of pavements. Therefore, D-cracking and SMART models were created whenever possible.

Series/Report Name or Number

FHWA-ICT-07-011 UILU-ENG-2007-2015

ISSN

0197-9191

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/45994

Sponsor(s)/Grant Number(s)

Illinois Department of Transportation

Copyright and License Information

No restrictions. This document is available to the public through the National Technical Information Service, Springfield, Virginia 22161

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