If you ride the New York City Subway then you are partaking in a ride that involves some old communication technology to keep the subway system that is over 100 years old running. The antiquated communication technology used to run the trains is currently being upgraded to Communications-Based Train Control (CBTC). The upgrade process is time consuming and does involve some shut downs of sections of the subway. When you take a ride on the subway you never know what type of people you’re going to encounter as this New York Subway video shows.