Miami is an expensive city.
the seventh-largest in the nation. The city has the third tallest skyline in the U.S. with over 300 high-rises, 55 of which exceed .
Miami is a major center and leader in finance, commerce, culture, media, entertainment, the arts, and international trade. The metro area is by far the largest urban economy in Florida and the 12th largest in the United States, with a GDP of $344.9 billion as of 2017. In 2018, Miami was classified as an Alpha level global city
used in the LRT lines of Singapore and Macau, along with the Metromover in Miami, Florida and the Jacksonville Skyway.
Tunnel construction.
The construction of an underground metro is an expensive project and is often carried out over a number of years. There are several different methods of building underground lines.
In one common method, known as cut-and-cover (used in the first New York City subway line), the city streets are excavated and a tunnel structure strong enough to support the road above