[Talk-GB] Ground truth v legal truth

[David Woolley]

On 19/07/2019 15:06, Tom Hughes wrote:
> You then followed up by saying that the logical consequence
> of it being a primary (which I was assuming was correct) was
> that nothing was tertiary, which didn't seem  to make much
> sense to me

The logical consequence of ignoring the official classification if it is 
not signposted, is that you cannot map tertiary, because with, very rare 
exceptions, they are not signposted and you can only distinguish them 
from residential by using the official sources, or by personal judgements.