This video shows how multiple trains can run on the layout independently of each other. Note this is an analogue layout - not digital. This independent operating is achieved by using switched isolated sidings and separate power supplies for the main loop and main siding section. Keep an eye out for the funicular railway running as well as the end to end shuttle service which can also accommodate different locomotives running on it. All on a 2' wide by 6' long baseboard.
By the way, this is the 50th video uploaded to my KZfaq channel !