This article provides a list of operational and under construction high-speed rail networks, listed by country or region. While the International Union of Railways defines high-speed rail as public transport by rail at speeds of at least for upgraded tracks and or faster for new tracks, this article lists all the systems and lines that support speeds over regardless of their statuses of upgraded or newly built.
The following table is an overview of high-speed rail in service and under construction by country. It shows all the high speed lines (speed of or over) in service. The list is based on UIC figures (International Union of Railways), updated with other sources.
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