In message <[EMAIL PROTECTED]>
Abigail Brady <[EMAIL PROTECTED]> wrote:
> On 9/20/07, Alex Mauer <[EMAIL PROTECTED]> wrote:
>
>> I think it would be better to use the layer tag rather than the tunnel
>> tag, but I agree that the whole thing should be railway=subway.
>
> I prefer tunnel to indicate tunnels. In addition, layer=-1 would be useful
> for where the underground goes in cuttings and has roads cross it on
> bridges, despite not being in a tunnel itself - the Met does this around
> Farringdon, as an example.
Agreed - layer says nothing about whether something is above or
below ground. It is purely about establishing a z-ordering for
objects. If it's in a tunnel we should say so explicitly.
Tom
--
Tom Hughes ([EMAIL PROTECTED])
http://www.compton.nu/
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