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This article analyses occasional work commuting mobility within three major metropolitan areas in Czechia in the context of future HSR routes. The main aim is to explain uneven commuting flows of inter-metropolitan travelers through their level of income, given their potential for the use of HSR from a demand perspective. To achieve the goals, the paper uses quantitative data analysis methods performed on a selection of 228 respondents who realized at least one business trip between Prague and Brno or Prague and Ostrava between January and September 2019. The results reveal that the level of income plays a significant role in the issue of using potential high-speed lines for occasional long-distance commutes.

The aim of this article is to discuss regional impacts of high-speed railways on transportation accessibility. It investigates the potential changes in the transportation accessibility of Czech municipalities due to the planned construction of high-speed rail lines in Czechia. It considers two currently discussed variants of the high-speed rail line between Prague and Brno. We discuss the model of potential transportation accessibility and discuss its usability in the preparation and construction of high-speed rail line structures, and how it would affect the optimal route selection. We also present different methods of accessibility analyses in GIS applied to the case of Czechia and their presentation through map outputs.