Positive train control (PTC) systems are operating on about 56 percent of freight railroads' route miles that are required to be governed by PTC systems, up from 45 percent in third-quarter 2017 and 16 percent on Dec. 31, 2016, the Federal Railroad Administration announced yesterday.
Passenger railroads have made less progress, with PTC systems in operation on 24 percent of required route miles as of Q4 2017 — the same as in Q3 2017, FRA officials said in a press release.
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