subways

subways are a convenient way to travel in big cities.

many people prefer subways to avoid traffic jams.

subways can get crowded during rush hour.

it's important to follow the rules while using subways.

subways are often the fastest way to reach your destination.

tourists often use subways to explore the city.

subways have become an essential part of urban transportation.

some subways offer free wi-fi for passengers.

subways are usually faster than buses for long distances.

safety measures are crucial for subway systems.