DCC and DCC-Bitswitch Collision Avoidance System. Two trains have to travel a 250 foot length of track in a figure 8 track configuration, the whole display is elevated 10 feet above the ground. Problems to over come: 1. Long bridge is not wide enough for both trains to pass each other at the same time. 2. Trains must not T-Bone on the 90 degree crossing. 3. Trains must run unattended for 13-15 hours a day. Video starts out showing the Yellow Train going through the crossing, after it clears the crossing the Red train (pan to Red Train) will startup and proceed across the single lane bridge. Pan back to Yellow Train and you will see the Yellow train will slow down, it is waiting for the Red Train to clear the bridges letting the...