Many countries offer subsidies to their railways because of the social and economic benefits that it brings. The economic benefits can greatly assist in funding the rail network. Those countries usually also fund or subsidize road construction, and therefore effectively also subsidize road transport. Rail subsidies vary in both size and how they are distributed, with some countries funding the infrastructure and others funding trains and their operators, while others have a mixture of both. Subsidies can be used for either investment in upgrades and new lines, or to keep lines running that create economic growth.
Rail subsidies are largest in China ($130 billion), Europe (€73 billion) and India ($35.8 billion), while the United States has relatively small subsidies for passenger rail with freight not subsidized.