The use of trains to carry crude is surging after dropping in recent years amid concerns about safety, as drillers in parts of North America produce more oil than area pipelines can accommodate. An average of 718,000 barrels of crude a day traversed America’s railways as of October, the latest data available, an 88% increase from a year earlier, according to the U.S. Energy Information Administration. That compares with a peak average of about 1.1 million barrels in October 2014. …