Detailed text transcripts for TV channel - CNN - 20171218:21:05:00
Around to that curve, they're probably going to have a lower speed. so you either have that enforcement of positive train control to back up the human being if they fail to slow the train down or don't create those b big differentials in speed on the track. >> what kind of tests had to be done? this was the inaugural test with passengers, but of course before you run a new train route like this, you test it with engineers and locomotives, et cetera. would that have been extensive testing? >> yes. so before opening this route, they're going to have to do a number of things. they're going to hav...
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