High-speed rail (HSR) is a type of rail transport that runs significantly faster than traditional rail traffic, using an integrated system of specialised rolling stock and dedicated tracks. While there is no single standard that applies worldwide, lines built to handle speeds above and upgraded lines in excess of are widely considered to be high-speed. The first high-speed rail system, the Tōkaidō Shinkansen, began operations in Japan in 1964 and was widely known as the bullet train. High-speed trains mostly operate on standard gauge tracks of continuously welded rail on grade-separated rights of way with large radii. However, certain regions with wider legacy railways, including Russia and Uzbekistan, have sought to develop a high speed railway network in Russian gauge. There are no narrow gauge high-speed trains; the fastest is the Cape gauge Spirit of Queensland at. Many countries have developed, or are currently building, high-speed rail infrastructure to connect major cities, including Austria,
El ferrocarril de alta velocidad (HSR) es un tipo de transporte ferroviario que corre significativamente más rápido que el tráfico ferroviario tradicional, utilizando un sistema integrado de material rodante especializado y pistas dedicadas. Si bien no existe un estándar único que se aplique en todo el mundo, las líneas construidas para manejar velocidades superiores y las líneas actualizadas en exceso se consideran ampliamente como de alta velocidad. Sin embargo, las primeras líneas de ferrocarril de alta velocidad, el Tōkaidō Shinkansen, comenzaron a operar en Japón en 1964 y se conocía ampliamente como el tren de bala. Los trenes de alta velocidad funcionan principalmente en las pistas estándar de los ferrocarriles continuamente soldados en los derechos separados de la vía con grandes radios. Sin embargo, ciertas regiones con el legado ferroviario más amplio, incluyendo Rusia y Uzbekistán, han buscado desarrollar una red ferroviaria de alta velocidad en Rusia.