Rainy night road traffic reflective mark line retro-reflection brightness coefficient test method
A technology for road traffic and testing methods, applied in photometry, optical radiation measurement, optical instrument testing, etc., can solve the problem of missing retroreflection brightness coefficient, etc., and achieve the effect of convenient measurement and simple structure
Pending Publication Date: 2018-10-12
云南交投集团公路建设有限公司 +3
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Problems solved by technology
[0004] In the process of realizing the present invention, the inventor found that in the current standards of our country, there is a lack of a test method for the retroreflective brightness coefficient of road traffic reflective markings on rainy nights under continuous rainfall conditions
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[0012] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0013] Aiming at the lack of existing testing methods, the invention can test the retroreflection luminance coefficient of road traffic reflective markings on rainy nights under continuous rainfall conditions.
[0014] Explanation of terms most relevant to the subject matter of the invention
[0015] (1) Rainy night road traffic reflective markings: refers to non-protruding vibration markings that can reflect light under dry, wet and continuous rainfall conditions on the marking surface, and use reflective glass beads on rainy nights as retroreflectors.
[0016] (2) Por...
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The invention provides a rainy night road traffic reflective mark line retro-reflection brightness coefficient test method comprising the steps that a rainfall simulation sprinkling device is arrangedand the rainfall simulation sprinkling device is enabled to sprinkle to the test area, wherein the sprinkled water is the clean water, the sprinkled water amount is 0.8+ / -0.2L / min, the position of the sprinkling nozzle is above the test area for 0.45+ / -0.15m, the sprinkling area is a circular test area of which the diameter is 0.50+ / -0.05m, and the water pressure of the rainfall simulation sprinkling device keeps constant; and the continuous sprinkling time is more than 10s and the road traffic reflective mark line coating surface and edge are ensured to be completely wet and drenched and then timing is started, and the measured value of the portable mark line retro-reflection meter after 30s is taken as the test result, wherein the sprinkled water amount and the sprinkling nozzle position are maintained to be stable in the test period. The advantages are that the visibility study of information transmission of the rainy night road traffic reflective mark line on the rainy days is enabled to be possible.
Description
technical field [0001] The invention belongs to the technical field of retroreflection luminance coefficient testing, in particular to a method for testing the retroreflective luminance coefficient of road traffic reflective markings at rainy nights. Background technique [0002] A lot of research and practice at home and abroad have proved that the effective use and configuration of road traffic reflective markings on rainy nights can significantly reduce traffic accidents on rainy nights and improve road traffic capacity. Compared with other safety measures, it can also save energy and protect the environment. It can be seen that the visibility of road traffic reflective markings in rainy nights is very important to ensure driving safety, and the brightness coefficient of retroreflection is an important basis for judging its visibility. [0003] For the test method of retroreflection luminance coefficient of road traffic reflective markings in the dry state, the internatio...
Claims
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Login to View More IPC IPC(8): G01M11/02G01J1/00
CPCG01J1/00G01M11/00
Inventor 张国辉苏鹤俊柯鉴茶增云马娅宗芋君赵宏程王庆龙姜明冯移冬
Owner 云南交投集团公路建设有限公司