Also found in: Dictionary, Wikipedia.


[′tən ′mīl]
(civil engineering)
In railroading, a standard measure of traffic, based on the rate of carriage per mile of each passenger or ton of freight.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a unit of measurement for freight transportation by oceangoing vessels. Ton-miles are calculated by multiplying the weight of the cargo in tons by the distance traveled by the vessel in nautical miles. In the USSR, the ton-mile is used for planning and calculating the freight turnover of oceangoing vessels. In other types of transport, freight turnover is measured in ton-kilometers (1 nautical mile equals 1.852 km).

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
California perishables, as shown in table 1, traveled over 2 billion ton-miles by rail in 2013.
Within 2018, the seasonality pattern is not repeated and Iranian total ton-miles exports reach a peak by May 2018 in line with President Trump announcing his decision to cease the participation of the US in the Iran deal and to begin re-imposing sanctions following a wind-down period.
USDA reported that Montana had the 7th lowest and North Dakota the 8th lowest average grain and oilseed rates per ton-mile in the 2006-2010 period for 36 states.
The rates of injury per ton-mile in Table 4 are most pertinent, however.
cartage costs had been but 94/100ths of 14 per ton-mile for the entire industry during calendar 1957.
In our studies for the STB, we found that the real average cost of a revenue ton-mile decreased by 31 percent between 1987 and 2008, even though the railroad cost recovery index (a measure of inflation for railroad inputs) had increased about twice as much as the producer price index over the period.
The airplane will carry forward its predecessor's efficiency, with nearly equivalent trip costs and 16% lower ton-mile costs than the 747-400 Freighter.
In addition, the VIUS survey design uses this weight as a major demarcation, so vehicles with this GVW or greater are sampled more heavily than are lighter vehicles, and the average loaded weight, required for ton-mile estimation, is only reported for vehicles above this boundary.
Boeing freighters offer the lowest trip and ton-mile cost in every freighter size.
It would require much less intrusive construction, far less land acquisition and paving, and would be far quieter and cleaner, consuming only one-third the amount of fuel per ton-mile compared to trucking.
(7) Passenger-mile and ton-mile figures are from National Transportation Statistics 1998 (U.S.