If a train can get 750 TMPG, what's the number for this?
This is correct. The proper measurement should be in Ton Miles Per Gallon and not Miles Per Gallon. The true measure of cost and efficiency must take into account how much mass is moved as well as the distance it is moved.
My guess is that taxation is the reason behind recording gallons used per one hundred miles. Remember, the more miles you go on a gallon of fuel means less taxes collected for the distance you traveled. The automobile instruments cannot recall the MPG measurement. However, the odometer records miles traveled and a record of the amount of fuel you purchased is available.
Which is more fuel efficient; a vehicle that can move two people forty miles on one gallon of fuel (40 MPG) or a vehicle that can move ten people forty miles on four gallons of fuel (10 MPG)?
An automobile can deliver 25 to 50 gross ton miles per gallon.
A jet airliner can deliver 60 to 65 gross ton miles per gallon.
A bus can deliver 110 to 120 gross ton miles per gallon.
A large truck can deliver 120 to 200 gross ton miles per gallon.
A train can deliver 750 gross ton miles per gallon.
Which is more fuel efficient; a vehicle that can move two people forty miles on one gallon of fuel (40 MPG) or a vehicle that can move ten people forty miles on four gallons of fuel (10 MPG)?
Which is more efficient; a vehicle that can move ten people forty miles on four gallons of fuel (10 MPG) or a truck that can move thirty tons forty miles on eight gallons of fuel (5 MPG)?
If a train can get 750 TMPG, what's the number for this?
But at that fuel usage it can push a container ship at 29 miles per hour. How far it goes in one second: 29mph / 3600 = .008, so it uses one gallon to go .008 miles. That's a gallon to push it only 43 feet.
Times 157,000 tons = 1,254 ton miles per gallon (counting the deadweight tonnage, the weight of all cargo, fuel, etc., not the ship itself).