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Network transport systems dependability analysis with critical situations discussion

Mazurkiewicz J.

Journal of Polish Safety and Reliability Association

2015

Vol. 6, No. 2

97--106

The paper describes the analysis and discussion of the transport network systems in case of the critical situation that happens during ordinary work. The formal model is proposed –the point of view combines hardware and software resources as well as task definition and dispatcher role. The types of failure, procedures and methodology to reduce the consequences of the system faults are pointed and categorized. The functional and reliability measures are defined. The approach to modeling is based on the system behavior observation. The definition of the critical situation sets are created by reliability, functional and human reasons. No restriction on the system structure and on a kind of distribution describing the system functional and reliability parameters is the main advantage of the approach. The proposed solution seems to be essential for the owner and administrator of the transportation systems.

Wykorzystanie bazy danych HYDRO dla potrzeb zarządzania zasobami wodnymi w sytuacjach kryzysowych

Graf R., Olszewski R.

Roczniki Geomatyki

2006

T. 4, z. 1

85-94

The Topographical Database (TBD) is a nationwide undertaking implemented since 2003 by the Head Office of Geodesy and Cartography and by Voivodeship Marshals. Its aim is, first of all, to create modern resources of topographic data which will provide a base for various spatial information systems built and used by state institutions and organisations as well as by private companies and individual users. As a reference database, TBD is one of the most important elements of the national infrastructure of spatial information within the context of implementation of INSPIRE Directive of the European Commission. One of the principal applications of TDB is its utilization in crisis management, where high quality spatial information plays important, often key role. The data contained in TBD may be used, for instance, for realization of the following aims: m registration and presentation of dangerous objects on a map, m conducting demographic analysis in potentially endangered areas, m registration and presentation of public buildings, m planning distribution of assembly points of population, command centers, evacuation routes, m planning and coordinating approach to the catastrophe area, m simulation of spreading of flood wave, m estimation of potential damages depending on actions undertaken during the disaster (analysis of variants of actions) and estimation of damages afterwards. Realization of these aims is possible thanks to the scope of content and accuracy of data contained in TBD: m digital model of the terrain surface, m ortophotomaps with resolution of the order of 0.5 meter, m vector data typical for spatial GIS databases containing descriptive attributes, m image of topographical map in digital raster form or in the form of plotter printouts from the database. In the paper examples of data available from TBD are discussed and general assessment of usefulness of individual information contained in TBD is presented supporting the most typical actions of crisis management centers. Attention was also drawn to methodological and technological aspects of taking advantage of TBD.