Like, the WALK / DONT WALK crossing signals that were around in my youth were slowly replaced with the HAND / WALKING PERSON ones, I'm sure because they're better for people who don't read English.
But also there is a cost to change, and it's often not worth doing if the benefit from the new system or standard isn't a lot better than the old.
Like, the WALK / DONT WALK crossing signals that were around in my youth were slowly replaced with the HAND / WALKING PERSON ones, I'm sure because they're better for people who don't read English.
But also there is a cost to change, and it's often not worth doing if the benefit from the new system or standard isn't a lot better than the old.