Pan Am’s EDBF (East Deerfield to Bellows Falls) gets a medium clear aspect (30 mph indication) at Greenfield, Massachusetts to proceed northward on the Connecticut River line.
Medium clear is displayed on the signal at left with a red over green over red.
Modern LED cluster signals offer relatively bright aspects that can be easier to photograph in daylight than older styles of color light signals that use traditional incandescent lamps.
