(1976) The IJK Ride Indicator, 1976. Transportation, Department of
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IADOT_IJK_Ride_Indicator_1976.pdf File Size:6MB |
Abstract
State highway engineers realized a need for a numerical quality index and began planning for a research project of this type in 1951. The Present Serviceability Index was developed through the AASHO (now AASHTO) Road Test near Ottawa, Illinois, from 1956 to 1962.1 longitudinal profile and physical deterioration such as cracking, patching, and rut depth (for flexible pavements) were considered in deriving these Present Serviceability Index (PSI) equations
| Item Type: | Departmental Report |
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| Keywords: | Deterioration, Flexible pavements, Indexes (Information management), Road meters, Road tests, Serviceability |
| Subjects: | Transportation > Pavements Transportation Transportation > Roads and highways Transportation > Research Transportation > Design and Construction Transportation > Equipment Transportation > Maintenance and preservation |
| ID Code: | 22515 |
| Deposited By: | Iowa DOT Library |
| Deposited On: | 26 Jul 2016 12:36 |
| Last Modified: | 26 Jul 2016 12:36 |
| URI: | https://publications.iowa.gov/id/eprint/22515 |