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"Maybe you or someone else can answer a question regarding the incremental maintenance requirements for high speed rail.  Several recent articles in the popular press have stated that some of the world's high speed train operators, i.e. China, France, Germany, etc. have slowed down their trains because of excessive power consumption and wear/tear on the equipment. If tis is true it would suggest that the wear/tear of high speed rail is greater than anticipated." My comment was not directed at German high speed rail operations exclusively nor did I claim that I was citing an authoritative source.  I made it clear that I was reacting to several articles that I had seen in the popular press over a period of time.  I confess to not writing down the page number and source of everything that I read.  I was seeking input from Oltmannd or anyone else whether the speed reductions, to the extent that what I read was accurate, could be indicative of the impact of high speed operations on maintenance expense and, therefore, one way to reduce the incremental maintenance expenses was to reduce the speed.  If a 112,000 lb. truck running 80 mph causes more wear and tear on a highway than a 72,000 lb.truck running 55 mph, is it not also true that a train running 220 mph would cause more wear and tear on rail infrastructure than one running 110 mph?
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