Arrangement method of curve signs under snow and ice visual environment

Abstract

The invention relates to the technical field of traffic design, in particular to an arrangement method of curve signs under a snow and ice visual environment. The curve signs comprise a low-frequency speed limiting sign arranged at the entrance of a curve, medium-frequency linear induction signs arranged at the road side positions of the curve and high-frequency snow land signs arranged at the road side positions of the curve. By adopting the structure arrangement, sufficient environmental information is provided for drivers who drive on the curve under the snow and ice visual environment so that the drivers can sense the necessary information such as the speed, the line type and the orientation so as to make a correct judgment.

Description

Technical field [0001] The invention relates to the technical field of traffic design, in particular to a method for setting curve signs in a visual environment of ice and snow. Background technique [0002] Low-grade highways in northern my country seldom set roadside sign information. In icy and snowy weather, the natural environment on the roadside is covered by snow and ice, and appears white. After the road surface is compacted by vehicles, the rut track in the middle of the road can blur the road alignment information. The natural environment information on the roadside still cannot play the role of prompts and instructions. In icy and snowy weather, it is difficult for drivers to know important information such as route shape and relative speed, which leads to a 13 times increase in traffic accident rate on highway curves in icy and snowy weather compared with non-icy and snowy weather. . The existing turning guidance methods for drivers on ice and snow curves have defects ...

AI Technical Summary

Problems solved by technology

[0002] Low-grade highways in northern my country rarely set roadside sign information. In snowy weather, the natural environment on the roadside is covered with ice and snow and appears white. After the road surface is compacted by vehicles, the rut track in the middle of the road can vaguely express the road alignment information, but The natural environment information on the roadside is still unable to play a role in prompting and indicating. In ice and snow weather, it is difficult for drivers to perceive important information such as route shape and relative speed. As a result, the traffic accident rate of road curves in ice and snow weather is 13 times higher than that in non-ice and snow weather.

Existing steering guidance methods for drivers on ice and snow curves have flaws and poor application effect

At ice and snow curves, the existing roadside linear guide signs are not obvious enough against the white background, and their color, shape, size and layout density cannot eliminate the driver's visual recognition errors

Although many scholars at home and abroad have conducted a lot of research on the causes of road traffic accidents and the law of vehicle speed and acceleration changes in curved road sections, they have not yet proposed research ideas and specific methods for improving the visual environment of ice-snow road curves.

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