👉 Subways, also known as underground trains, are a type of transportation system that operates in cities and towns. They are typically found in urban areas where there is limited space for traditional bus or subway systems. Subways are designed to be efficient and environmentally friendly, with features such as automatic doors, digital displays, and low maintenance infrastructure. They can transport people quickly and safely between different parts of a city, making them an important mode of transportation for many people living in urban areas. In addition to