Officials at the California Public Utilities Commission have expressed concerns regarding 3.5-mile-long freight train that Union Pacific sent cross-country and arrived in Southern California over the weekend.
“Our safety concerns with the train in question include that there is adequate braking capacity for a train that size, that the track structure could handle the forces generated by a train of that size, and that the train not block crossings for more than 10 minutes,” said CPUC spokeswoman Terrie Prosper in San Francisco.

