In a classroom, Garry Golden is sharing his ideas with some university students. Golden is a futurist. Futurists are scientists who study the world today and use that information to make predictions about the future. Some futurists study the environment. Some study human society(社 会 ) . Golden studies transportation—the science of how to move people from place to place. Golden says there will be fewer cars in cities in the future.
"Cars take up a lot of space," Golden says." We have to build lots of parking lots(停 车 场 ) for them , but having so many parking lots is not efficient. Much of the time the parking lots are empty." Golden says cities will make new laws to limit(限制) the number of cars in the future.
"Buses have the same problem as parking lots," Golden says. Sometimes they are full, and sometimes they are empty. Golden says in the future people can use phones to send messages when they want to take the bus. And buses can change(改变) their ways to pick them up.
"Traffic is a big problem for cities today," Golden says." But there are so many things we can do to improve it. I believe that in thirty years we will live in a very different world."
