This common reflective traffic sign features a circular reflective symbol for a maximum speed limit of 80 km/h, printed onto a square base of yellow reflective material. What's most striking is the unique texture of its background material.

The yellow reflective background is covered with a regular grid-like or honeycomb pattern, a typical characteristic of High-Intensity Grade (or the even higher Diamond Grade) reflective sheeting. This type of reflective sheeting utilizes microprismatic or glass bead technology to efficiently reflect vehicle headlight beams back towards the light source—that is, into the driver's eyes—during nighttime or in low-light conditions.

The number "80" and the red circle signify a clear traffic rule: vehicles traveling on this road section must not exceed a maximum speed of 80 kilometers per hour. The yellow background is commonly used for warning or indicative signs, reminding drivers to pay attention to the upcoming speed limit regulation.

The production of such reflective signs is a practical example of reflective sticker/sheeting printing and application. Using methods such as screen printing, digital printing, or computer cutting, the design (red circle, black numbers) is applied to special reflective film. This film is then bonded to a substrate, like an aluminum plate, finally becoming the durable and highly visible traffic signs we see on our roads.

Reflective materials on signs are crucial for maintaining traffic order, preventing speeding accidents, and ensuring nighttime driving safety. Day and night, these signs, shining with a warning light thanks to their reflective materials, silently protect every road user.