United States – planned and proposed railway lines. Future rail corridors, new route proposals and long-term network expansion projects before construction begins.
The United States is also known as USA, US, U.S., America or United States of America.
United States – railway lines formally proposed or in planning stages: routes announced, studied or included in national and regional transport plans but not yet under construction. Ranges from rail projects with confirmed funding to long-term corridors still in feasibility study. Shows the intended direction of future network growth — which cities are targeted for new rail connections, where high-speed rail networks have planned extensions and which corridors are being considered for entirely new alignments.
United States – 1,136 proposed railway segments, including 1,041 mainline railway segments, 5 tram segments, 30 metro segments and 60 light rail segments.
