Warning -- New Speed combatting measures in U.S.A.

[DrPhill]

Does anybody know what the low pyramid shaped squares of metal, which are common on our roads, are used for?

Braille.

 

[Phil Pascoe]

I can get the soundtrack of this, but if I try to get the picture, I get an advert asking if I want to meet old, gay men!

 

[Steve Maskery]

Well, do you? I can put you in touch with one!
(Now, no jumping to conclusions, guys...)

 

[Harbo]

Does anybody know what the low pyramid shaped squares of metal, which are common on our roads, are used for?

Do you mean the ones used at Pedestrian Crossings?

http://urbanfinish.com/road-studs-bs873-pt4/4553554782

Rod