Rail refers to a system of transportation that uses trains running on tracks to move people and goods. It is an essential part of public transport in many countries, providing a reliable and efficient way to travel over long distances. Rail systems can include various types of trains, such as passenger trains, freight trains, and high-speed trains. The infrastructure of rail includes tracks, stations, and signaling systems that ensure safe and effective operation. Many cities have urban rail systems, like subways or trams, which help reduce traffic congestion and pollution. Overall, rail plays a crucial role in connecting communities and supporting economic growth.