Advance Clear to Limited · Rule 412
Indication: Proceed, approaching second signal at LIMITED speed.
3 mast presentations
High mast signal, double aspect, staggered. top: flashing yellow; bottom: flashing green.
A high mast, staggered, double aspect signal displaying flashing yellow on the top, flashing green on the bottom.
High mast signal, double aspect, inline. top: flashing yellow; bottom: flashing green.
A high mast, inline, double aspect signal displaying flashing yellow on the top, flashing green on the bottom.
High mast signal, triple aspect, inline. top: flashing yellow; middle: flashing green; bottom: red.
A high mast, inline, triple aspect signal displaying flashing yellow on the top, flashing green in the middle, red on the bottom.