Rule 407

Signal aspect: Clear to Medium

Indication: Proceed, approaching next signal at MEDIUM speed.

1. A high mast, staggered, double aspect signal displaying yellow on the top, green on the bottom.
2. A high mast, inline, double aspect signal displaying yellow on the top, green on the bottom.
3. A high mast, inline, triple aspect signal displaying yellow on the top, green in the middle, red on the bottom.
4. A high mast, inline, triple aspect signal displaying green on the top, red in the middle, green on the bottom.
5. A double aspect, dwarf signal, displaying yellow on the top, green on the bottom.