Model Railway - ABC Braking Demonstration

A demonstration of trains queueing behind one another and moving ahead when the track is clear. This is achieved using ABC constant distance braking. Paths in and out of the storage yard are set by an NX panel. Train detection is handled by MERG DTC-8s, layout control is by MERG CBUS hardware and JMRI on a PC, The ABC generators are custom built (five diodes and a relay). The relays are driven by MERG CANVOUT modules.