electric connection

[bethsteel]

help I saw a set up where 2 trains on the same track had some device that stopped one train if it got to close to the other train and then allowed it to continue when a safe distance was reestablished.can anyone tell me what this is and how to set it up???

[GMTRacing]

I believe Miniatronics makes such a device. I've seen it demonstrated at the Big E show and it is impressive. J.R.

[loathar]

Here's a couple articles on it.
http://www.gatewaynmra.org/detection1.htm
http://www.artc.com.au/library/ANSY%20500%20v1.rev1.pdf
http://wwwjoe-daddy.blogspot.com/2007/01/lessons-learned-block-detection-choices.html