Transportation Conflagration

So capacity of Ethanol production is on the hockey stick growth curve but transportation is still the choke point.  To get the rail mode updated will cost billions and take years...and it's still a bet for those guys.  Spurs are being built out everywhere now but as we read in "Ethanol's Rail Jam"
there's still a 1.5 year backlog on tanker car production anyway.  We already know that ethanol wont get the luxury of a pipeline. 

Can someone provide Ethanol Alley with an average cost per gallon per mile to move ethanol via tanker truck? 

Since rail will NOT be able to keep up with demand, we must look at bringing another mode of transportation up that has virtually limitless infrastructure (roads).