Figure 4D-3 shows 21 different arrangements of signal lenses in vehicular signal faces (Arrangements A through U). The number and arrangement of signal lenses are further described in Section 4D.16.

1. Vertically arranged signal face with 3 signal lenses: from top to bottom, circular red, circular yellow, circular green
2. Horizontally arranged signal face with 3 signal lenses: from left to right, circular red, circular yellow, circular green
3. Vertically arranged signal face with 3 signal lenses: from top to bottom, left-turn red arrow, left-turn yellow arrow, left-turn green arrow
4. Horizontally arranged signal face with 3 signal lenses: from left to right, left-turn red arrow, left-turn yellow arrow, left-turn green arrow
5. Vertically arranged signal face with 4 signal lenses: from top to bottom, circular red horizontally adjacent to circular red, circular yellow, circular green
6. Horizontally arranged signal face with 4 signal lenses: from left to right: circular red, circular red, circular yellow, circular green
7. Vertically arranged signal face with 4 signal lenses: from top to bottom, circular red, circular yellow, circular green, left-turn green arrow
8. Horizontally arranged signal face with 4 signal lenses: from left to right, circular red, circular yellow, left-turn green arrow, circular green
9. Vertically arranged signal face with 4 signal lenses: from top to bottom, circular red, circular yellow, straight-through green arrow, left-turn green arrow
10. Horizontally arranged signal face with 4 signal lenses: from left to right, circular red, circular yellow, left-turn green arrow, straight-through green arrow
11. Vertically arranged signal face with 5 signal lenses: from top to bottom, circular red, circular yellow, straight-through green arrow, left-turn green arrow, right-turn green arrow
12. Horizontally arranged signal face with 5 signal lenses: from left to right, circular red, circular yellow, left-turn green arrow, straight-through green arrow, right-turn green arrow
13. Vertically arranged signal face with 5 signal lenses: from top to bottom, circular red, circular yellow, circular green, left-turn yellow arrow, left-turn green arrow
14. Horizontally arranged signal face with 5 signal lenses: from left to right, circular red, circular yellow, left-turn yellow arrow, left-turn green arrow, circular green
15. Vertically arranged signal face with 5 signal lenses: from top to bottom, circular red, left-turn yellow arrow horizontally adjacent to circular yellow, left-turn green arrow horizontally adjacent to circular green
16. Horizontally arranged signal face with 5 signal lenses: from left to right, circular red, circular yellow, left-turn yellow arrow, left-turn green arrow, straight-through green arrow
17. Vertically arranged signal face with 5 signal lenses: from top to bottom, circular red, circular yellow horizontally adjacent to right-turn yellow arrow, circular green horizontally adjacent to right-turn green arrow
18. Horizontally arranged signal face with 5 signal lenses: from left to right, circular red, left-turn yellow arrow, left-turn green arrow, right turn yellow arrow, right-turn green arrow
19. Vertically arranged signal face with 5 signal lenses: from top to bottom, circular red, circular yellow, circular green, right-turn yellow arrow, right-turn green arrow
20. Horizontally arranged signal face with 5 signal lenses: from left to right, circular red, circular yellow, circular green, right-turn yellow arrow, right-turn green arrow
21. Vertically arranged signal face with 5 signal lenses: from top to bottom, circular red, circular red, circular yellow, circular green

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