Not entirely. My resort uses dry erase boards in different areas around the mountain to alert skiers to changing conditions. They are almost always in the areas where extreme terrain will be encountered and they say things such as, "No clean entrances ANYWHERE!", "Hope you brought your rock skis", and "Be prepared to SELF ARREST!"
That said, it addresses the prevailing conditions at one area, rather than a standardized rating system in order to compare Midwest slopes to Rockies slopes for instance.
I'm not sure if that type of standardization is really necessary. If the trail ratings are intended to guide the casual skier, usually such skiers are staying in their home geographical region and more or less know what a blue or black means. Once they start traveling they can usually pick up the differences between a blue at the vacation spot and a blue back home after a run or two. After that the comparisons between home and vacation are not as important as paying attention to where you are in the moment. That's where the adventure part of this fabulous endeavor comes in. This is supposed to be fun and exciting, not just safe.
Edited by DesiredUsername - 8/25/14 at 1:07pm