A train system is a network of vehicles that run on tracks to transport passengers and goods from one location to another. Trains are powered by various sources, including electricity, diesel, or steam, and they operate on scheduled routes. The system includes different types of trains, such as commuter trains, freight trains, and high-speed trains, each designed for specific purposes. Train systems are often an essential part of public transportation in urban areas, providing an efficient and eco-friendly way to travel. They connect cities and regions, reducing traffic congestion and lowering carbon emissions. Key components of a train system include railway tracks, stations, and signals that help manage train operations safely.