A new project compiles comprehensive data on public transit systems worldwide, mapping lines, stations, railcars, and historical information. This dataset aggregates details from nine major transit networks across the US and Asia, creating a centralized resource for researchers, urban planners, and transportation enthusiasts. The project fills a gap in standardized transit information.

Among the featured systems are Beijing Subway, the world's busiest metro network, and New York City's system with 472 stations operating 24/7. The collection includes Baltimore's dual rail systems, BART serving the Bay Area, Chicago's historic 'L', Washington Metro, and Tokyo Metro which handles the highest annual ridership globally. Each entry provides operational details and historical context.

This dataset offers practical applications for urban planning, transportation research, and comparative analysis of global transit networks. By compiling standardized information about routes, infrastructure, and operations, the project enables developers and researchers to build tools that improve transportation systems worldwide. The centralized data resource supports innovation in urban mobility solutions.