Unlimited wrote:... Has anyone else seen a sign like this posted near a railroad crossing? ...
AFAIK it isn't in the MUTCD yet, but all that means is that it hasn't been designated a standard traffic control device. I haven't seen this particular variant, but there there is a range of innovative signage out there, mostly on local initiative, for grade crossings and other high hazard locations. Most of these are effective, at least to some extent, at getting the attention of drivers who aren't alert. The bigger problem is the drivers who simply don't car.
What I would be curious to know is whether this sign flashes all the time, or whether it is interlocked into the other crossing protection.