High-speed transit refers to transportation systems that move passengers quickly over long distances, typically at speeds exceeding 155 miles per hour (250 kilometers per hour). These systems often include trains, such as bullet trains in Japan and TGV in France, which utilize advanced technology and dedicated tracks to minimize travel time. High-speed transit can significantly reduce travel times between cities, making it a popular choice for commuters and travelers. It also promotes economic growth by improving access to jobs and services. Additionally, high-speed transit is often more environmentally friendly compared to cars and airplanes, as it can reduce traffic congestion and lower carbon emissions.