subways

Subways are underground or elevated railway systems used for public transportation in urban areas. They consist of trains that run on dedicated tracks, allowing them to move quickly through cities, often avoiding traffic congestion. Subways typically have multiple stops, providing access to various neighborhoods and points of interest. They are an efficient way to transport large numbers of people, reducing reliance on cars and decreasing road traffic. Most subways operate on fixed schedules and offer a cost-effective means of travel, contributing to a city's economic vitality and sustainability.