New York's LaGuardia Airport undergoes major renovation

The video discusses the renovation of La Guardia Airport, which includes the addition of six concourses and two new arrival and departure halls, covering a total of 2.7 million square feet. Terminal B, which opened last November, features 18 new gates, with seven more expected to open in 2020. A new walkway will connect Terminal B to Concourse A. Additionally, a new Terminal C is under construction to replace the existing terminals C and D, with an expected opening in 2021.

How many new gates will be available in the renovated airport?

What is the purpose of the new walkway being constructed?