Flagstaff's Train Noise Mystery Explained

The City of Flagstaff is aware of an operational issue with the wayside horn system at both the Fanning Dr. and Steves Blvd. railroad crossings. This issue has resulted in trains blowing their locomotive horn when passing these crossings over the last several days. BNSF Railway has determined that while the wayside horns located at each crossing are operating correctly, the signals that inform approaching train crews that the wayside system is operational are malfunctioning. This issue is caused by an accumulation of frozen snow on the system sensors and triggers BNSF engineers in approaching trains to blow the locomotive...

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