Why is tactile paving often yellow?
Short answer
Tactile paving is often yellow because the color can stand out from surrounding pavement and be easier for people with low vision to see. Its raised patterns also communicate directions and warnings through touch.
How it works
Tactile paving, also called detectable warning or guidance paving in different places, has raised patterns on its surface. Long bars usually guide movement, while rows of dots can warn people about stairs, crossings, edges, or changes in direction.
For people who are not completely blind, seeing the paving is also useful. Yellow can create a strong brightness or color contrast with the pavement around it, making the route easier to locate. The raised surface helps people who rely on a cane or the soles of their feet.
Key point
The important feature is not yellow by itself but the contrast with the surrounding surface. Other colors may be used when they provide enough contrast. Objects placed on the paving can block information that someone needs for safe travel.