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The dynamic analysis of the railway bridge in Tczew was carried out in the article as an example of such bridges adaptation suitability to handle high-speed trains. Calculations of railway bridges are greatly complicated and labor-consuming. The bridge model and a rolling stock passage simulation were developed in the SOFISTIK software. Three types of elements were used for the correct mapping of the structure in the calculation model: beam element (BEAM), surface element (QUAD), truss element (TRUSS). The beam el...

Many cities, towns and villages around the world have adopted new Lighting Emitting Diode (LED) technology in order to save energy, operational and maintenance costs. While energy-efficient, these light sources have a critical effect on the appearance of historic sites at night – and the technology has unique properties and numerous inherent drawbacks that present challenges to decision makers as well as inexperienced lighting professionals. This paper uses practice-based research, critical analysis of literatur...