Since all the discussion missed the bit about truck transit being ignored, trucking, the great jobs program of years past (remember when federal education testing indicated, somehow, that all displaced loggers and miners were best suited to become truckers) will step in and take over and push all this crap into your neighborhood roads. (And don't think it can't happen.) Those single wall and fiberglass tanks will haul crude and other hazmat just fine!! Step aside rails, good ol' independent truckers, hours of service and weight limits be damned --- we'll give you boys a run for the money. Unclog those rails to make way for those high speed trains that will get cars off our freeways so we can make a better living trucking!!