This can be achieved by internal or external expansion. Because the different firms are involved in the same stage of production, horizontal integration allows them to share resources at that level. Topics
Up until the 1990s, the average freight train in Canada was about 5,000 feet (1.54 kilometres) long and weighed 7,000 tons. But it is now not uncommon to see these trains stretch to 12,000 feet, sometimes as much as 14,000 feet (more than four kilometres), weighing up to 18,000 tons.he CN train involved in the derailment outside Brighton, for example, was built as a conventional train would be, with three locomotives in the front hauling 137 rail cars behind. But it was stretched out 8,850 feet and weighed nearly 12,000 tons.
A particular coal train I have worked with runs 1,670 miles round-trip between the mine and the power plant. The route is mountainous throughout, with numerous long ascending grades. The train is 135-cars long with gross weight of 18,500 tons (including locomotives). Each locomotive carries 5,000 gallons of fuel. In that round trip, the train will refill twice, each time each locomotive taking on about 4,000 gallons. So: