Pavement Asset Management
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Highways, Fifth edition.
Search for articles by this author University of Auckland, New Zealand. Search for articles by this author UK. Author Affiliations. Key: Open access content Subscribed content Free content Trial content. Abstract: Contents Introduction What is pavement asset management?
Pavement management levels Pavement management information Deterioration modelling Maintenance treatment Consideration of costs and benefits What treatment schemes should have priority? Pavement management as a tool to aid decision-making Final comments References.
Full Text References. Related content. Measurements can be made by persons on the ground, visually from a moving vehicle, or using automated sensors mounted to a vehicle.
PMS software often helps the user create composite pavement quality rankings based on pavement quality measures on roads or road sections. Recommendations are usually biased towards predictive maintenance , rather than allowing a road to deteriorate until it needs more extensive reconstruction.
Pavement Asset Management Systems
Research has shown that it is far less expensive to keep a road in good condition than it is to repair it once it has deteriorated. This is why pavement management systems place the priority on preventive maintenance of roads in good condition, rather than reconstructing roads in poor condition. In terms of lifetime cost and long term pavement conditions, this will result in better system performance. Agencies that concentrate on restoring their bad roads often find that by the time they've repaired them all, the roads that were in good condition have deteriorated. Like others of its era, the first PMS was based in a mainframe computer and contained provisions for an extensive database.
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The pavement management process has been incorporated into several pavement management systems including SirWay . The following management approach evolved over the last 30 years as part of the development of the PAVER management system U.
The approach is a process that consists of the following steps: . Road inventory includes road location using both coordinate and linear referencing systems, road width, road length and pavement type. Pavement condition can be divided into structural and functional condition with various condition variables.
Functional condition can be divided into roughness, texture and skid resistance while structural condition includes mechanical properties and pavement distresses. Pavement condition prediction is often referred to pavement deterioration modelling, which can be based on mechanical or empirical models. Also, hybrid parameterized models are popular.www.cantinesanpancrazio.it/components/maqenuwy/1129-spia-per-iphone.php
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Pavement deterioration is caused by traffic and weather conditions. Also, material and construction choices affect the deterioration process. It has been shown that empirical models outperform the mechanical and hybrid models in condition prediction. Work planning is essentially road maintenance planning in which the maintenance works are assigned both spatially and temporally according to the desired criteria such as minimal costs to the society.