Beiträge in Tagungsbänden:
J. Litzka, A. Weninger-Vycudil:
"Asset Management: Technical Inputs to Decision Making, Austria - National Report, Strategic Direction Session ST 4";
in: "XXIIIrd World Road Congress Paris 2007",
XXIIrd World Roard Congress,
The Austrian Asset Management System is used for a net-wide objective maintenance planning process in consideration of different aspects and demands on different decision levels (project-level, network-level, policy-level). At the moment it is applied on the federal road network (motorways and expressways) with a total length of more than 2,100 km as well as on the state road network in most Austrian states.
The primary aim of the system is to allocate a comprehensive basis for an objective maintenance planning process of both pavement construction and structures (bridges, tunnels, etc.).
The Pavement Management System (PMS) employed for systematic pavement maintenance planning is based on LCC-analysis (life-cycle-cost-analysis) that provides a framework system for decision-making on maintenance measures in order to optimize efficiency in terms of the use of the resources available or in terms of pavement condition. For the practical application the commercial software VIAPMSTM is used.
The objects along the road network are treated by the BAUT system, the building database Austria hosts bridges, tunnels, noise barriers, retain walls and many other types of structures. The aim is to reflect the maintenance work flow of the road administrations. Starting with input of inventory data, storing inspecting results, forming the basis of cost prognosis for rehabilitation measures, the system provides also the treatment of roadwork sides. At the end a number of data mining tools and graphical representations are available to support decision makers in their daily work.
The combination of both PMS-results and assessment of structures is done by using advanced visualization techniques to generate strip maps and thematic maps.
Condition data of pavements and structures are an essential input during the assessment and analysis process. The condition surveys of the pavement are carried out in form of visual inspection and measurements by using high speed measurement devices.
The condition of an object is investigated every 2nd year and every 6th year by a minor respectively major inspection. Thereby the elements as well as the whole structure is rated by a number between 1 and 5, standing for perfect condition and non operable. These data are forming the basis of a special aging model for objects employing the cohort survival method.
The technical results of the different analysis and assessment processes of both pavement constructions and structures can be used either as basis for the generation of the annual maintenance program or to highlight the needs for maintenance budget at policy level. This output allows the road administration authorities to show clearly the policy makers the long term development of the condition distribution of the pavement and the structures for different budget preconditions and to convince them to spend the needed money into road maintenance.
Erstellt aus der Publikationsdatenbank der Technischen Universitšt Wien.