Identification Signs & Speed

Vision changes with different walking speeds; the faster the speed, the more the vision within the field of view decreases. The specific amount of vision decline requires verification through experiments, and a large number of experiments and investigations must be conducted to establish standards and regulations.

2. Logo Sign Shape

Signage shapes, particularly traffic signage shapes, must comply with national or international standards. In the absence of standard specifications, attention should be given to shapes that are easily recognizable and distinct.

3. Signage Size

According to human factors research, under the same line of sight, larger signage leads to shorter recognition times, whereas smaller signage results in longer recognition times. The size setting depends on how much time we expect to spend on recognition, with the前提 being that this size is visible to the normal human eye at the set viewing distance. On highways, where vehicles travel at high speeds, drivers must complete recognition in an extremely short time, hence highway signage is significantly larger than the size of signage on general urban roads.

4. Identification Signs and Symbols

On a sign, there's a rule for how many words to write, how many symbols or logos to mark. First, the size must be visible, and second, it should be readable within the expected recognition time.

5. Signs and Colors

The clarity of signage is greatly influenced by the colors used. Similarly, when viewing signs of the same size from the same distance, the visibility and recognition time can vary significantly depending on the background color and the colors of the text and symbols. Generally, the higher the warning level, the brighter the colors and the greater the color contrast.