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posted on 01 September 2017

Rail Week Ending 26 August 2017: Intuitive Sectors Rolling Averages Slightly In Expansion

Week 34 of 2017 shows same week total rail traffic (from same week one year ago) improved according to the Association of American Railroads (AAR) traffic data. The economically intuitive sectors are insignificantly in contraction, whilst the intuitive rolling averages are insignifantly in expansion.

Analyst Opinion of the Rail Data

We review this data set to understand the economy. If coal and grain are removed from the analysis, this week it contracted 0.4 % (meaning that the predicitive economic elements declined year-over-year). Also consider total rail movements are below 2015 levels - even though they are above 2016 levels. This week the one year rolling averages continue in expansion for the 13th week after contraction beginning in late 2015.

The strength this week again was intermodal - which is economically positive (and is contrary to the slowness of the economically intuitive carload counts).

The following graph compares the four week moving averages for the rail economically intuitive sectors (red line) vs. total movements (blue line): Rail's intuitive sectors have been bouncing around the zero growth line for most of 2017 remained below the zero growth line for the seventh week..

This analysis is looking for clues in the rail data to show the direction of economic activity - and is not necessarily looking for clues of profitability of the railroads. The weekly data is fairly noisy, and the best way to view it is to look at the rolling averages (carloads [including coal and grain] and intermodal combined).

Percent current rolling average is larger than the rolling average of one year ago Current quantities accelerating or decelerating Current rolling average accelerating or decelerating compared to the rolling average one year ago
4 week rolling average +3.4 % unchanged unchanged
13 week rolling average +3.9 % accelerating decelerating
52 week rolling average +2.5 % accelerating accelerating

A summary of the data from the AAR:

For this week, total U.S. weekly rail traffic was 551,776 carloads and intermodal units, up 2.3 percent compared with the same week last year.

Total carloads for the week ending August 26 were 272,153 carloads, up 1 percent compared with the same week in 2016, while U.S. weekly intermodal volume was 279,623 containers and trailers, up 3.6 percent compared to 2016.

Four of the 10 carload commodity groups posted an increase compared with the same week in 2016. They included coal, up 4,756 carloads, to 96,317; metallic ores and metals, up 2,467 carloads, to 23,941; and nonmetallic minerals, up 2,444 carloads, to 39,999. Commodity groups that posted decreases compared with the same week in 2016 included motor vehicles and parts, down 3,237 carloads, to 16,156; grain, down 1,845 carloads, to 19,881; and farm products excl. grain, and food, down 1,532 carloads, to 14,926.

For the first 34 weeks of 2017, U.S. railroads reported cumulative volume of 8,805,020 carloads, up 4.9 percent from the same point last year; and 9,075,045 intermodal units, up 3.4 percent from last year. Total combined U.S. traffic for the first 34 weeks of 2017 was 17,880,065 carloads and intermodal units, an increase of 4.1 percent compared to last year.

Coal is over 1/3 of the total railcar count, and this week the EIA says coal production is 9.6 % higher than the production estimate in the comparable week in 2016.

The middle row in the table below removes coal and grain from the changes in the railcar counts as neither of these commodities is economically intuitive.

This Week Carloads Intermodal Total
This week Year-over-Year +1.0 % +3.6 % +2.3 %
Ignoring coal and grain-0.4 -0.4 %
Year Cumulative to Date +4.9 % +3.4 % +4.1 %

[click on graph below to enlarge]

z rail1.png

For the week ended August 26, 2017

  • Estimated U.S. coal production totaled approximately 16.7 million short tons (mmst)
  • This production estimate is 1.7% lower than last week's estimate and 9.6% higher than the production estimate in the comparable week in 2016
  • East of the Mississippi River coal production totaled 6.2 mmst
  • West of the Mississippi River coal production totaled 10.6 mmst
  • U.S. year-to-date coal production totaled 516.1 mmst, 14% higher than the comparable year-to-date coal production in 2016

Coal production from

Steven Hansen

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