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A Milwaukee Road Non-confrontational thread.
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Chad Thomas. It has been a while so my memory may not be completely accurate and there may have been some changes since I was there. The main line from Minneapolis to Aberdeen was mostly single track automatic block. There had previously been some double track but as I recall most of the second main track had been removed. I don't recall if we had any CTC in those areas where the second main track was removed. As I recall much of the track from Mobridge to Miles City was controlled automatic block. That is, the dispatcher controlled the signals as with CTC but the switches were manual. Although controlled automatic block was more efficient that regular automatic block, I understand there was not a lot of it and possibly it was later prohibited except in those areas where it had already been installed. <br /> <br />Larry
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