Would Somebody Check My Math, Please?

I was doing a little research because I’m a big nerd and I found some interesting stats for nationwide bus-based transit.

Diesel Fuel Consumed (gallons)
550,466,000
Other Fuel Consumed (gallons)
131,356,000
Total Fuel Consumption (gallons)
681,356,000
Miles, Passenger
21,376,973,000
Passenger Miles Per Gallon
31.4
Miles, Vehicle Total
2,470,991,000
Total Bus Miles Per Gallon
3.6

Oh, I left out the electric stuff. Hmm. The amount of energy involved is four or five orders of magnitude less, so the final number comes out the same.

Electricity Consumed (kwh)
2,399,000
1 kilowatt-hour
3414 BTUs
1 gallon diesel
139,200 BTU
Equivalent diesel (gallons)
58,803
Total Fuel Consumption (gallons)
681,414,803
Passenger Miles Per Gallon
31.4

Of course, these numbers can only be improved by hybrids and increased ridership. It would be interesting to see these numbers for smaller samples — how does a really busy line compare? If the 16 is full all day long, what is the mileage per passenger?

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