I think they should just stop having the carriage rides. Apparently this has happened before as well. If they don't ban them, perhaps require veterinarian checks twice a year or something. I can't imagine the trauma of seeing a horse collapse and die in front of you!
www.yahoo.com/news/us/arti...
A carriage horse in NYC's famed Central Park collapsed and died ... traumatizing onlookers as efforts to revive the poor animal were unsuccessful ... and it's all on video. The carriage horse's death...