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Interestng stuff. Much of the fixed infrastructure investment would last many years and some of it is still in use today. How does the Brown paper allocate these costs? Also, at the time of dieselization, how much deferred maintainence to steam-related infrastructure had accumulated during the war and the immediate post-war boom. It's also worth remembering that the economy went into recession during the mid to late 50's. Modern supersteam era locos were making extended runs with greatly reduced maintainence on many roads. For example NYC Niagras were running 25,000 miles a month between servicing, and even Northern Pacific which used a poor grade of coal greatly extended runs and service intervals. Just how reliable early diesels were is another question. I sincerely hope the MTBF of 20-30 days for SD70MAC's given in the recent Trains article in BNSF preventative maintenance is a mis-print. I suspect the Big Boys did better than that. Had there been no EMD, I wonder if the capital investment would have gone into more mainline electification. Does the Brown paper address that alternative?
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