First of all I do not have a obsession with car signage. Second of all I don't like the way how your bashing other members interests which is against the fourm policy by the way.
I wasn't just speaking about the signs, if the on board systems shut down this could mean a complete reset of every single circut breaker on board. Especially if CBTC is activated, that can pose a severe safety threat (no the R179's don't come prepared delivered with CBTC I'm just stating as a fact.) This problem could also cause the TOD to reset, meaning it could reset the coupling systems, emergency systems, brake systems and so forth.