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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]
[4] [5] Despite these facts, since its introduction in 1986, [6] [7] [8] the IRI has become the road roughness index most commonly used worldwide for evaluating and managing road systems. The measurement of IRI is required for data provided to the United States Federal Highway Administration , [ 1 ] [ 9 ] and is covered in several standards ...
The present serviceability index (PSI) is a pavement performance measure.Introduced by the American Association of State Highway and Transportation Officials (AASHTO), the PSI is one of the most widely used pavement performance indicators after pavement condition index (PCI) and international roughness index (IRI).
U.S. Route 12 (US 12) in the U.S. state of Illinois is an arterial highway that runs northwest to southeast through the Chicago metropolitan area.It enters Illinois at the Wisconsin border north of Richmond, and exits into Hammond, Indiana, from Chicago near the foot of the onramp to the Indiana Toll Road (Interstate 90, or I-90); as it exits Illinois, the route is also concurrent with US 20 ...
Illinois Route 185 is an east–west state road in the south-central portion of the U.S. state of Illinois. Its western terminus is in Taylor Springs at Illinois Route 127, and the eastern terminus is at Farina at Illinois Route 37. This is a distance of 49.88 miles (80.27 km). [1]
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.
Interstate 270 (Missouri–Illinois), a partial beltway around St. Louis Interstate 270 (Maryland) , a connector to the Washington, D.C. metropolitan area Interstate 270 (Ohio) , a beltway around Columbus, Ohio
The Illinois Department of Transportation was created by the 77th Illinois General Assembly in January 1972. The department absorbed the functions of the former Department of Public Works and Buildings, acquired some planning and safety inspection functions of other state agencies, and received responsibility for state assistance to local mass transportation agencies such as the Chicago-area ...