Views: 0 Author: Site Editor Publish Time: 2023-07-03 Origin: Site
For the majority of drivers driving at night, more test the driver's ability to predict the response, in the night can really help the driver is often those traffic signs, these signs will not become blurred with the dim light, the reason is because the traffic signs in the production process of the use of reflective film material. With its good reflective performance, the driver can easily identify the location of the traffic signs and the information they want to convey, so as to achieve the purpose of guiding the direction and warning the safety.
At present, the reflective film used by traffic signs can be divided into five levels according to its different reflective properties: the first reflective film is a micro-prism reflective film; Second class is usually called high-intensity grade reflective film; Grade 3 is usually called super engineering grade reflective film; Grade 4 is usually called engineering grade reflective film; Grade 5 is usually called economic grade reflective film. In fact, the level of reflective film selected for the production of traffic signs is affected by a variety of factors, and the level of selection is different from place to place. The following will take you to see the two relatively important items.
The first is the resistance of reflective materials. When choosing reflective materials, the initial brightness is very important, but equally important is the durability of the material's brightness. Not only when it is just used, it is also necessary to consistently maintain good reflective performance during the service life of the reflective film, so that the traffic signs can be seen far and clearly. Due to the different climatic conditions in different regions, the environmental impact of traffic signs is also different. As a long-term exposed traffic safety facility, temperature changes, ultraviolet radiation, rain, smoke erosion and wind and rain, traffic signs must withstand the test of all these different environmental conditions. In the short term, the reflective film will fade, fall off, and the visibility will be greatly reduced, which will cause hidden dangers to traffic safety.
The second is the contrast between the word film and the bottom film. In theory, the higher the brightness of the reflective film, the farther the driver's visual recognition distance, the more clearly you can see, but due to the particularity of the structure of Chinese characters, the light generated by different reflective films is very likely to blend with Chinese strokes, which is not conducive to driver discrimination and cognition. Therefore, in the case of taking into account safety and economy, the level of the text reflective film of the traffic signs can be selected slightly higher than the background color reflective film level to reduce the contrast effect of the word film and the bottom film.
There are many factors that affect the selection of reflective film used in road traffic signs, in addition to the two mentioned above, the grade of the road itself, the operating speed is also a factor that must be considered in the selection of reflective film materials. In order to improve the identification effect of traffic signs and ensure road safety, the use of reflective film should consider the current real environmental conditions, economic conditions and existing technological development, according to the actual situation to be differentiated, so that traffic signs really become a warning, indicative role, to become the guarantee of road traffic safety.
