Read the text below and answer the following questions!
Getting Around the City
In big cities, people use many kinds of transportation to get from one place to another. Some people take the bus, which is a cheap way to travel. Others prefer to take the subway, especially during rush hour when the roads are busy. Subways are fast and do not get stuck in traffic. For short distances, many people ride bicycles or walk.
Taxis and ride-sharing apps like Grab or Uber are also common. Although they cost more than buses, they are more comfortable and convenient. In some cities, people also use trams or ferries to move around. Choosing the right transportation depends on where you are going, how far it is, and how much time or money you want to spend.
Why do many people choose to ride the subway in big cities?