Public transit data can prove valuable to both cities and riders. For example, it can reveal high-congestion times, which provides insight for transit officials to, say, add more buses or subway cars to a certain route to make commutes more reliable.
In 2015, Swiss-German IT firm GeOps worked with the University of Freiburg to create a map that shows 200 of the world's major mass transit systems moving in real time. The teams used schedule and live data feeds from subway and bus authorities (like the MTA in New York City and TfL in London).
Since not all mass transit operators offer truly real-time data, GeOps said that a large part of the map incorporates schedule information. Still, it's mesmerizing to watch the trains and buses travel across cities, especially during rush hour.
Take a look at Amsterdam's transit below: