Abstract
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.