After publication of the EC Directive 2004/54/EC on minimum safety requirements for road tunnels Austria introduced a performance based approach to road tunnel safety. The Austrian Tunnel Risk Model TuRisMo was one of the first methods defining a quantitative approach to analyse and evaluate road tunnel safety. The risk model was published in the RVS guideline 09.03.11 in 2008. After more than 5 years of practical experience in applying this model an initiative was taken to upgrade the model for a wider application. The activities to improve the Austrian Tunnel Risk Model are focussing on the following aspects: (1) to implement additional parameters influencing fire risk in the existing, standardized model - in particular for unidirectional tunnels; (2) to open the model for simulations to be able to study individual parameters for individual tunnels specifically and (3) to systematically evaluate the data collected on tunnel accidents and fires in Austrian motorway tunnels since 2006 in order to get a more realistic model and to improve the input data basis for the assessment of (alternative) safety measures. In 2014 a revised issue of RVS 09.03.11 (TuRisMo 2) will be published, including the modification of the standardized method as well an expansion towards a simulation-based approach for the detailed investigation o f specific problems which are not covered by the standardized approach.
Upgrading of the Austrian tunnel risk model TuRisMo - methodical and practical aspects
2014
10 Seiten, Bilder, Tabellen, 6 Quellen
Conference paper
English
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