Follow the Yellow Brick Road

Lately, my neighborhood has recently gone through some renovations.  They had dug up strips of grey colored road and in place, put some yellow bricks there fore the blind.

I think it's a good improvment for the community. However, that got me thinking..



Why are these blind people friendly bricks are bright yellow?

I mean, blind people prolly cannot see the color. The non-blind people prolly don't need to see these bricks anyways. :p

Nothing serious, just random mindless thoughts is all :P