Ton mile

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1.(Railroads) A unit of measurement of the freight transportation performed by a railroad during a given period, usually a year, the total of which consists of the sum of the products obtained by multiplying the aggregate weight of each shipment in tons during the given period by the number of miles for which it is carried.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
He writes that during the period of public-private partnerships, two of the main measures of railway output - the ton mile and the passenger mile - increased tremendously.
However, given the volatile nature of the Iran-US relations following on from president Donald Trump's threats to amend and then kill the Iranian nuclear deal, there was a significant drop in total ton mile exports towards the end of 2017, below that of the same period in the previous year.
However, as it seems, soon their product tanker counterparts could soon receive some positive news, as demand seems primed to pick up in new areas as well, leading to increased ton mile demand for their vessels.
For revenue per ton mile, Colorado, Kansas, Indiana, and Missouri had the largest increases while Montana and North Dakota had the smallest increases.
It is difficult to see a strong recovery in the tanker market as long as the net supply of tonnage rises faster than the total ton mile demand, the company said in the report.
FedEx has set a goal of reducing greenhouse gas emissions from its worldwide air operations by 20 percent by 2020, per available ton mile. Since 2005, it has reduced aircraft emissions by 3.7 percent by pound per available ton mile.
Each gross ton mile variable (which includes the weight of the train) is scaled down by a factor of average net ton miles (including only the weight of the freight) to gross ton miles for that category of freight to approximate net ton miles in the given category.
The company said during its second quarter earnings call on July 23 that grain will be one of the commodities, alongside crude oil, coal and intermodal, that could support CNI's revenue per ton mile in the second half of the year.
The current trend of cross US Gulf trade verses longer hauls to the US Atlantic coast or US west coast is keeping a cap on ton mile demand.
Schedule 300 of Form M includes ton mile statistics.