The Dutch rail network is top 3 busiest in the world. Many lines have 10+ trains in each direction, every hour. The usage of certain lines at a certain time is

The Dutch rail network is top 3 busiest in the world. Many lines have 10+ trains in each direction, every hour. The usage of certain lines at a certain time is calculated in periods of 6 seconds! We're waaay beyond normal human coordination capacity.