The population in London has been rapidly growing for years, gaining over 100,000 people per year since 2001. With such a large population, there's an amplified need for reliable transportation. In London, residents primarily depend on the Underground (or the Tube), a system of rapid transit much like a subway. The London Underground caters to a majority of Greater London as well as other counties in the U.K. As the population continues to grow, transportation is expected to grow along with it. London has created a program that will not only improve the efficiency of traveling but also the satisfaction of the Underground passengers. London is introducing the new Tube, and the newly imagined design is expected to completely remodel the world of underground transportation.