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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]
So, to calculate the GBE, the depth of each layer should be multiplied by the granular equivalency factor for the material in that layer. ... Hot mixed asphalt 38.1 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 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 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).
Cold mix asphalt is often used on lower-volume rural roads, where hot mix asphalt would cool too much on the long trip from the asphalt plant to the construction site. [18] An asphalt concrete surface will generally be constructed for high-volume primary highways having an average annual daily traffic load greater than 1,200 vehicles per day. [19]
Micro milling is also known as carbide grinding. It is a lower cost alternative to diamond grinding of pavement. [2] Micro milling uses a specialty drum with three to four times as many cutting teeth than a standard milling drum. [12] Micro milling can be used either as the final surface [13] or as a treatment before applying a thin overlay. [12]
There are many different ways to measure fatigue cracking, but in general a pavement distress manual or index will be used. For example, the Pavement Condition Index is widely used to quantify the overall level of distress and condition of a section of road. Measurement of fatigue cracking specifically (and pavement distress in general) is ...