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California and Rhode Island were the states ranked worst for road roughness, with 44% and 41% of roads in poor condition, respectively. ... lead to better road quality. The road roughness index is ...
Average road quality by state According to the BTS data, there are about 20,000 total miles in Washington state, a total that grew through the late 2000s, fluctuating around 19,000 and 20,000 ...
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 ...
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 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. When assessed correctly, PASER ratings provide a basis for comparing the quality of roadway segments. [1]
4. Delaware. Index Score: 61 out of 100. Delaware has a particularly high number of beaches for its small size, with 80.35 per 10,000 square miles (20 beaches in total), much higher than the ...
The ratings are done in a distributed fashion through parameters in the {{WikiProject U.S. Roads}} project banner; this causes the articles to be placed in the appropriate sub-categories of Category:U.S. road transport articles by quality and Category:U.S. road transport articles by importance, which serves as the foundation for an ...
The Worst States for Each Driving Behavior. Speeding: In Rhode Island, 48.1% of road deaths involve speeding, the highest rate in the country. Wyoming (44.8%) has the second-highest speeding death ...