Open Source Railway Designer is a free web application for designing railway infrastructure, analyzing capacity, creating timetables, and more. It allows users to design railway infrastructure, visually detect conflicts in capacity, and automatically add new trains to existing timetables for short-term planning. The unique aspect of OSRD is its open source development, allowing anyone to use, develop, and distribute the software. The project is also governed publicly, with decisions made collectively. Additionally, OSRD is designed for interoperability, making it possible for custom infrastructure formats and signaling systems to work together seamlessly. The website lists sponsors, but does not provide further details.
https://osrd.fr/en/