I think it was decided that the cost of replacing all the road signs was too great.
Personally I like the imperial measurements for roads though i guess thats just cause its what i'm used to.
What did wind me up however was when taking my driving theory test I was asked a question along the lines of "if a car is traveling at x mph on a dry road how many metres would it take to stop after the driver applied the brakes"
All imperial fine, all metric fine, but mixing up the units in the same sentence is just taking the piss

.. They could have just said yards rather than metres
... ok so what if i'm being pedantic!
