Search results
Results From The WOW.Com Content Network
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]
current IL 1 was posted on what is now IL 394 from 1957 to 1964, the old road was Alt. IL 1 during that time IL 2: 73.91: 118.95 IL 40 in Sterling: WIS 213 in South Beloit: 1918: current Originally Rockford to Dixon to Mendota to Cairo; replaced by US 51 south of Mendota IL 3: 187.44: 301.66 US 51/IL 37 in Cairo: IL 100 in Grafton: 1918: current
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 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 slope (in/mi, m/km, etc.).
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).
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 ...
The Illinois side includes Henry County, Mercer County, and Rock Island County. [4] In extreme northwestern Illinois the Driftless Zone, a region of unglaciated and therefore higher and more rugged topography, occupies a small part of the state. Charles Mound, located in this region, is the state's highest elevation above sea level.
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]