University of Illinois Urbana-Champaign

Update of Condition Rating Survey (CRS) Calculation/Prediction Models Phase 2. CRS Calculation Model Development

Heckel, Laura; Ouyang, Yanfeng

Content Files
FHWA-ICT-07-009.pdf

Permalink

https://hdl.handle.net/2142/45997

Description

Title
Update of Condition Rating Survey (CRS) Calculation/Prediction Models Phase 2. CRS Calculation Model Development
Author(s)
  • Heckel, Laura
  • Ouyang, Yanfeng
Issue Date
2007-06
Keyword(s)
CRS, calculation models
Date of Ingest
2013-11-13T20:08:02Z
Abstract
The Illinois Department of Transportation (IDOT) surveys every state-maintained roadway in a two-year cycle. Images of the roads are collected digitally and viewed at workstations in the office. The five predominant distresses and their severities are determined and inputted into software that calculates a Condition Rating Survey (CRS) value, using models determined through previous research. The object of Phase 2 of this project was to revise the existing models and develop new models for pavement types that currently do not have models. The model form used consists of determining CRS as a function of roughness, rutting and faulting (where appropriate), and recorded distresses and severities. When the research was completed, eight existing models were revised and three new models were developed. Also, eight of the models use 9.0 as the intercept, while not compromising accuracy.
Series/Report Name or Number
FHWA-ICT-07-009
ISSN
0197-9191
Type of Resource
text
Genre of Resource
Technical Report
Permalink
http://hdl.handle.net/2142/45997
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

Owning Collections

Research and Publications - Illinois Center for Transportation PRIMARY