CNN CNN Newsroom With Carol Costello May 14, 2015 14:35:00
Designed to prevent the very type of an accident we're dealing with here. >> so what exactly is positive train control? cnn's takes us inside a train simulator to find out. >> the engineer still operates the train. what pcc does provides an extra layer of protection in order to make sure that the engineer is doing what he or she should do to safely operate the train. as you can see on the monitor here the little white dot represents the train itself. this represents the warning distance when we come up on an area where it actually needs to be taken. the red line represents breaking distance th...
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