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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.
Highway agencies use IRI thresholds to characterize road condition; for example, in the United States, an IRI of less than 95 in/mi (1.50 m/km) is generally considered by the Federal Highway Administration to be in "good" condition, an IRI from 96 to 170 in/mi (1.51 to 2.68 m/km) is considered "acceptable", and an IRI exceeding 170 in/mile (2. ...
Michigan Road, as well as other early roads, in Indiana. The Michigan Road was one of the earliest roads in Indiana.Roads in early Indiana were often roads in name only. In actuality they were sometimes little more than crude paths following old animal and Native American trails and filled with sinkholes, stumps, and deep, entrapping ruts.
After nearly a decade of efforts, the first two test highways were designated, one each in the Lower and Upper peninsulas of the state and included on the 1970 state highway map. The system was created and expanded in scope c. October 5, 1970, after it was approved by the County Road Association of Michigan and the State Highway Commission.
Shortly after the creation of the Michigan Territory in 1805, the new government established the first road districts. The federal government aided in the construction of roads to connect population centers in the territory. At the time, road construction was under the control of the township and county governments. The state government was ...
Road Map of Kent County, Michigan (Map). 1 in:1.5 mi. Grand Rapids, MI: Kent County Road Commission. OCLC ...