Search results
Results from the WOW.Com Content Network
Granular base equivalency or granular base equivalence (GBE) is a measure of total pavement thickness. [1] [2] Since pavement is composed of multiple layers with different physical properties, its total thickness is measured by GBE. GBE translates the thickness of different road layers to a number using a set of coefficients.
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]
Contrary to the ACN, the ICAO does not prescribe a standardized calculation procedure for the PCN. [4] Different PCN calculation procedures may therefore be found around the world. However, the ICAO defines a standardized reporting format for the PCN that comprises the PCN numerical value and a series of 4 letters. [1]
Typical base course thickness ranges from 100 to 150 millimetres (4 to 6 in) and is governed by underlying layer properties. Generally made of a construction aggregate , it is spread and compacted to at least 95% relative compaction, thus providing a stable foundation for additional layers of material.
Layers in the construction of a mortarless pavement: A.) Subgrade B.) Subbase C.) Base course D.) Paver base E.) Pavers F.) Fine-grained sand In highway engineering, subbase is the layer of aggregate material laid on the subgrade, on which the base course layer is located.
The California Bearing Ratio (CBR) is a measure of the strength of the subgrade of a road or other paved area, and of the materials used in its construction.. The ratio is measured using a standardized penetration test first developed by the California Division of Highways for highway engineering. [1]
A pavement management system (PMS) is a planning tool used to aid pavement management decisions. PMS software programs model future pavement deterioration due to traffic and weather, and recommend maintenance and repairs to the road's pavement based on the type and age of the pavement and various measures of existing pavement quality.
Tools. Tools. move to sidebar hide. ... Download as PDF; Printable version; ... This template is used to perform a calculation and then round the output.