W3-1 – STOP AHEAD (SYMBOL)

W3-1a – STOP AHEAD (WORD LEGEND)

W3-2 – YIELD AHEAD (SYMBOL)

W3-2a – YIELD AHEAD (WORD LEGEND)

W3-3 – SIGNAL AHEAD (SYMBOL)

W3-3a – SIGNAL AHEAD (WORD LEGEND)

W3-4 – BE PREPARED TO STOP

W3-5 – SPEED REDUCTION AHEAD

W3-5a – SPEED ZONE AHEAD

W3-6 – DRAW BRIDGE AHEAD