Electrified railways use electric power to operate trains, providing a cleaner and more efficient alternative to diesel engines. This system typically involves overhead wires or electrified tracks that supply electricity to the trains, allowing them to travel faster and with less pollution. Many urban transit systems, such as subways and trams, utilize electrified railways to reduce emissions and improve air quality. Additionally, long-distance trains, like high-speed rail, benefit from electrification, enabling them to cover large distances quickly while minimizing their environmental impact.