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The PASER scale is a 1-10 rating system for road pavement condition developed by the University of Wisconsin-Madison Transportation Information Center. PASER uses visual inspection to evaluate pavement surface conditions.
The pavement condition index (PCI) is a numerical index between 0 and 100, which is used to indicate the general condition of a pavement section.The PCI is widely used in transportation civil engineering [1] and asset management, and many municipalities use it to measure the performance of their road infrastructure and their levels of service. [2]
The road test used large road user panels to establish the present serviceability rating (PSR) for each test section. Since panel ratings are expensive, a substitute key parameter present serviceability index (PSI) was established. The PSI is based on data on the road's longitudinal roughness, patchwork, rutting, and cracking. Later studies ...
In October 2020, the DMV developed a road test for teens under 18 seeking a full provisional license. The test involved examiners setting up cones in large parking lots and watching the driver ...
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Roughness progression for a road in Texas, US. Blue dots show the times of maintenance. The international roughness index (IRI) is the roughness index most commonly obtained from measured longitudinal road profiles. It is calculated using a quarter-car vehicle math model, whose response is accumulated to yield a roughness index with units of ...
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The PSI was developed based on the AASHO Road Test's present serviceability rating (PSR). AASHO Road Test was a set of experiments carried out by the 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 ...