Depending on the retroreflective distribution measuring device, three sets of controlled experiments were designed. To obtain the retroreflective distribution of road traffic markings, the coefficient of retroreflected luminance (RL) changes of road traffic markings under different measurement geometry was analyzed. Several observation angles commonly used in retroreflection measurements were selected. The deviation range of vertical entrance angles was set to 8°. The horizontal entrance angles were selected according to the horizontal measurement angle of a mobile retroreflectometer unit. A white road traffic marking sample, which measured 10 mm × 46 mm, was used in the experiments. The results showed that the retroreflective distribution of road traffic markings was not uniform, the influence of the change of observation angle on the RL was greater than the entrance angle, and the change of retroreflection in the direction of the vertical entrance angle was more obvious than the horizontal entrance angle.
Retroreflective distribution measurements and analysis of road traffic markings
2020 International Conference on Optoelectronic Materials and Devices ; 2020 ; Guangzhou,China
Proc. SPIE ; 11767
2021-01-26
Conference paper
Electronic Resource
English
Red Retroreflective Raised Pavement Markings
Transportation Research Record | 2008
|Configuring retroreflective markings to enhance the night-time conspicuity of road workers
Online Contents | 2014
|Red Retroreflective Raised Pavement Markings: Driver Understanding of Their Purpose
Online Contents | 2008
|How Might Wet Retroreflective Pavement Markings Enable More Robust Machine Vision?
Transportation Research Record | 2019
|