Terminal 4 to T4s Madrid

Hello Gary,
I did not see an answer on my question you gave me. It was a different answer which was not usefull to me.
My question is how to get from terminal 4 to S4. What do you suggest.
Is there a bus or do I have to walk?
Kind regards

Bart

My Reply...

This is from a previous question.
The transport of passengers to and from the T4 and the T4S is conducted by means of an Automated Passenger Transport System. This is a driverless train that covers the distance slightly over 2 km separating the two terminals in just 4 minutes. It will operate 24 hours a day and it will run every 2 minutes during peak hours, making 30 second stops at each station
Joanne