What are the black and yellow road signs on the road?

1 Answers
GarrettDella
07/29/25 5:38pm
The yellow and black curb markings are road construction safety signs in traffic signs, also known as road barrier signs. One function of the yellow and black curb markings is to warn and remind. Generally, solvent-based paint is used, which is air-drying. The yellow and black effect is achieved through a "color overlay" method—first spraying the main color, such as yellow, then covering it with a template or other regular striped stencil before spraying black. Below is an introduction to the basic meanings of traffic sign colors under normal circumstances: 1. Red: Indicates prohibition, stop, or danger, used for the borders, background, or slashes of prohibition signs, as well as for cross symbols, slash symbols, and the background of warning linear guide signs. 2. Yellow or fluorescent yellow: Indicates a warning, used for the background of warning signs. 3. Blue: Indicates instructions or compliance, used for the background of directional signs; indicates driving information such as place names, routes, or directions, used for the background of general road guide signs. 4. Green: Indicates driving information such as place names, routes, or directions, used for the background of highway and urban expressway guide signs.
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