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The RailComm Blue Flag Indicator (BFI™) is designed to utilize radio remote control to remotely activate blue LED light indicators, installed wherever flagging protection is required. Remote control blue flag indicators are utilized on the mainline and in the yard to protect mechanical maintenance, repair and fueling operations. With RailComm's BFI, a conveniently located control panel commands multiple blue flags on all sets of tracks, protecting the front and rear of the train undergoing maintenance. RailComm's BFI is designed to save time for railroad mechanical, transportation and operations departments as well as improve productivity, the company says.