Minimum retroreflectivity compliance system, method and assembly
View Patent ↗A system, method and assembly for performing traffic sign inspections is provided. In one embodiment, the assembly includes a first plurality of sheetings that each have a combination of retroreflectivity and color that is different from the combination of retroreflectivity and color of each of the other first plurality of sheetings; a first clamp and second clamp for clamping one of said first plurality of sheetings to a traffic sign; a first handheld light source; and a first enclosure for removably housing the first plurality of sheetings, said first and second clamps, and said first handheld light source. The assembly may further include a second enclosure for removably housing a second plurality of sheetings that each has a combination of retroreflectivity and color that is different from the combination of retroreflectivity and color of each of the other second plurality of sheetings.
1. A sheeting element comprising:
a substrate comprising a single color substantially matching an original color of a highway sign;
wherein the sheeting element has a retroreflectivity level of substantially one of the following: 7 cd/lx/m 2 , 15 cd/lx/m 2 , 25 cd/lx/m 2 , 50 cd/lx/m 2 , 75 cd/lx/m 2 , 120 cd/lx/m 2 , or 250 cd/lx/m 2 ;
wherein the sheeting element has a six inch square shape; and
wherein the sheeting element is configured for inclusion in a traffic sign inspection assembly kit.
2. The sheeting element of claim 1 , wherein the element is constructed with a beaded retroreflective material.
3. The sheeting element of claim 1 , wherein the element is constructed with the element is constructed with a prismatic retroreflective material.
4. The sheeting element of claim 3 , the element further comprising four tiles of prismatic retroreflective material that form a composite rectangular sheeting and wherein the four tiles are orientated at angles 0°, 90°, 180° and 270° with respect to an edge of the composite rectangular sheeting.
5. The sheeting element of claim 1 , wherein the retroreflectivity level is 7 cd/lx/m 2 .
6. The sheeting element of claim 1 , wherein the retroreflectivity level is 15 cd/lx/m 2 .
7. The sheeting element of claim 1 , wherein the retroreflectivity level is 25 cd/lx/m 2 .
8. The sheeting element of claim 1 , wherein the retroreflectivity level is 50 cd/lx/m 2 .
9. The sheeting element of claim 1 , wherein the retroreflectivity level is 75 cd/lx/m 2 .
10. The sheeting element of claim 1 , wherein the retroreflectivity level is 120 cd/lx/m 2 .
11. The sheeting element of claim 1 , wherein the retroreflectivity level is 250 cd/lx/m 2 .
12. The sheeting element of claim 1 , wherein the color is white.
13. The sheeting element of claim 12 , wherein the retroreflectivity level is 50 cd/lx/m 2 , 120 cd/lx/m 2 , or 250 cd/lx/m 2 .
14. The sheeting element of claim 1 , wherein the color is green.
15. The sheeting element of claim 14 , wherein the retroreflectivity level is 7 cd/lx/m 2 , 15 cd/lx/m 2 , or 25 cd/lx/m 2 .
16. The sheeting element of claim 1 , wherein the color is yellow.
17. The sheeting element of claim 16 , wherein the retroreflectivity level is 50 cd/lx/m 2 or 75 cd/lx/m 2 .
18. The sheeting element of claim 1 , wherein the color is orange.
19. The sheeting element of claim 18 , wherein the retroreflectivity level is 50 cd/lx/m 2 or 75 cd/lx/m 2 .
20. A sheeting element comprising:
a substrate comprising a single color substantially matching an original color of a highway sign;
a prismatic film or a beaded film; and
a clamp attached to the substrate;
wherein the sheeting element has a retroreflectivity level of substantially one of the following: 7 cd/lx/m 2 , 15 cd/lx/m 2 , 25 cd/lx/m 2 , 50 cd/lx/m 2 , 75 cd/lx/m 2 , 120 cd/lx/m 2 , or 250 cd/lx/m 2 ; and
wherein the sheeting element is configured for inclusion in a traffic sign inspection assembly kit.