The Layout is 38' wide by 12' deep. The Layout was built with Atlas HO code 83 tracks: Crossings, Switches and Super-Flex. There are 39 Switches and 3 Crossings. The software that controls the tracks is called JMRI. It's a very powerful yet free software that allows more than you can handle. The Track is divided into 71 sectors, each controlled by a block sector. The name and position of trains are always displayed on the Layout Monitor.
An idle train is usually in a blue sector.
Pink defines the end of the track so that a train can be stopped right there before it goes off track.
If a train moves from sector 1 to sector 2, sector 1 goes from red to gray and sector 2 from gray to red. The best thing is that programs can be written in Python to control each train automatically and launch various itineraries (as long as they do not collide – Yeah! Right! Lot of fun!)