A locomotive is a powerful railway vehicle designed to pull trains along tracks. It typically contains a large engine that generates the necessary force to move heavy loads, such as freight or passenger cars. Locomotives can be powered by various energy sources, including diesel fuel, electricity, or steam. They are essential for the transportation of goods and people over long distances. Modern locomotives are equipped with advanced technology for safety and efficiency. Many feature systems like GPS for navigation and automatic braking to enhance safety. The design of locomotives has evolved over time, with innovations improving their performance and reducing environmental impact.