On Thu, May 19, 2011 at 8:36 AM, Andy Allan <[email protected]> wrote:
> On Wed, May 18, 2011 at 1:56 PM, Colin Smale <[email protected]> wrote:
>
>> My
>> idea at the moment is that the existing "ref" tag be unambiguously defined
>> to be a kind of "primary key" and to have alternative tagging for its
>> apparent value. I expect this may also be the case with road names, and
>> possibly other attributes as well where there is an opportunity for the
>> official version to deviate from the apparent/published version. How about
>> this for a hypothetical link road from the M1 to the M2:
>>    ref=M1
>>    signed_as:ref=M2
>
> [...]
>
>> General purpose renderers (including mkgmap) would give precedence to the
>> signed_as values for ref and name if they exist.
>
> This is completely back-to-front. Whatever reference the mapper sees
> and the consumer wants to see should be in the ref tag surely? Why
> would the one that is important 99.99% of the time be bumped to a
> secondary tag and the main tag taken over for stuff that's honestly
> not useful?
>
> Cheers,
> Andy

+1

Of the various ideas, using loc_ref or alt_ref seems the best bet: you
should be able to use major tags like ref/name without worrying about
local details.

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