Corrugated guardrail is an important part of highway traffic facilities, and its main role is to protect driving safety and reduce traffic accidents caused by vehicle loss of control. However, corrugated guardrails alone cannot fully meet the needs of driving safety, especially at night or in situations where visibility is poor, and drivers need clearer road instructions to ensure driving safety. Therefore, the installation of contour markers on the corrugated guardrail has become an important means to improve driving safety and comfort.
The main function of the contour mark is to clearly display the contour of the road through the reflection of the car lights, so that the driver can understand the changes in the road alignment in time. Especially at night or in the case of poor visibility, the role of the contour mark is even more prominent. It can help the driver to better follow the linear changes of the road when the vehicle transitions from a straight section to a curved section, and effectively prevent accidents caused by unclear vision.
When setting up the contour mark, you need to follow certain layout principles. First of all, in order to ensure visual continuity, the main line should be continuously set up with outline markers. The spacing between the main lines of the attached contour markers is usually 24 meters, but in sections such as large and medium bridges, the spacing should be shortened to 16 meters because the line of sight may be limited. The column contours are laid at a distance of 100 metres in straight sections and shortened to 50 metres in curved sections to accommodate changes in road alignment.
In addition, the ramps also need to be continuously contoured, usually with a spacing of 8 meters. This principle ensures that the driver always has a clear view of the contours of the road while driving, thus maintaining an accurate judgment of the road alignment.
The color of the reflector is also a factor to consider in the selection of the contour mark. The commonly used contour reflector color is yellow-white on both sides, i.e. yellow on the left and white on the right. This color combination is highly recognizable at night or in situations of poor visibility, helping drivers to quickly identify the contours of the road.
In terms of price, the price of the attached contour label of ordinary PVC material is about 5 yuan/piece, while the price of the column contour label is slightly higher, about 17-20 yuan/piece. Although contour markers are not expensive, they play an integral role in improving driving safety.
It should be noted that the installation requirements of the contour label need to be determined according to the actual needs and drawing design. During the installation process, it should be ensured that the connection between the contour mark and the corrugated guardrail is firm and reliable to avoid falling off or being damaged when the vehicle is impacted. At the same time, the installation position of the contour mark should also be reasonably adjusted according to the road alignment and the driver's line of sight characteristics to ensure its best use effect.
In conclusion, the contour markers installed on the corrugated guardrail play an important role in improving driving safety and comfort. With reasonable laying principles and installation requirements, it is possible to ensure that the contour markers provide clear road directions to the driver at night or in the event of poor line of sight, thus effectively preventing traffic accidents. Therefore, in the construction of highway traffic facilities, full attention should be paid to the setting and application of contour markings to provide a strong guarantee for driving safety.