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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.). [ 1][ 2] Although a universal term, IRI is calculated per ...
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 ...
M-22 is a state trunkline highway in the US state of Michigan. It is 116.7 miles (187.8 km) long and follows the Lake Michigan shoreline of the Leelanau Peninsula, making up a portion of the Lake Michigan Circle Tour. It also passes through the Sleeping Bear Dunes National Lakeshore. The highway is U-shaped as it rounds the peninsula running ...
Ramp travel index. Ramp travel index or RTI, is a way of measuring a vehicle's ability to flex its suspension, a property also known as axle articulation. The RTI rating is used mainly in the off-roading industry to test and describe chassis limits of modified vehicles. The ramps vary between 15 and 30 degrees of angle for the vehicle to ride up.
The construction documents, specifically the technical specifications, require the contractor to submit product data, samples, and shop drawings to the architect and engineer for approval. This is one of the first steps that is taken by the contractor after execution of the construction contract and issuance of the "Notice to Proceed".
M-50 is a state trunkline highway in the US state of Michigan.Although designated as an east–west highway, it is nearly a diagonal northwest–southeast route. The western terminus is at exit 52 along Interstate 96 (I-96) near Alto a few miles east of the metro Grand Rapids area, and its eastern terminus is in downtown Monroe at US Highway 24 (US 24, Telegraph Road).
M-185. M-185 is a state trunkline highway in the U.S. state of Michigan that circles Mackinac Island, a popular tourist destination on the Lake Huron side of the Straits of Mackinac, along the island's shoreline. A narrow paved road of 8.004 miles (12.881 km), it offers scenic views of the straits that divide the Upper and the Lower peninsulas ...
The Michigan Merit Exam ( MME) is a replacement for the Michigan Educational Assessment Program (MEAP) test, a minimum-competency test for high school students. It was optional for class of 2007 (i.e., it could be taken instead of the MEAP) but was required for the class of 2008 and beyond. The MME is used to measure "Adequate yearly progress ...