Precise and continuous data about pavement condition and how it changes in time are essential for road infrastructure management, since it helps to plan investments and choose appropriate means for reconstruction. It’s very important that the data would be continuous over time, measurements would be precise, and that right kind of data would be collected. The measurements and analysis can be performed on so-called network level, where the whole road network is included. Another option is to focus on a single road section in order to determine its condition, or in case of new pavements, to determine the quality and conformity of works.
In Estonia PMS (Pavement Management System) is used for network analysis for some time now. This means that data is regularly collected for various pavement parameters of the whole road network, that databases are kept up-to-date, and that this data is analysed. The Estonian Road Administration is responsible for management of respective databases for Estonian national roads. In general pavement data is analysed once a year and the road reconstruction and maintenance works are planned for the following period based on the analysis results. Following parameters are measured: load bearing capacity of the road structure, pavement roughness, pavement texture, rut depth, pavement crossfall, and curviness of the road. In addition road condition inventory is performed. These parameters are measured for the whole paved national road network, which includes ca. 10,000 km of roads.
We led the implementation process of PMS system on Estonian roads and were entrusted the task to collect data about the condition of the whole national road network in Estonia.
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