[talk-au] secondary_link

[Stephen Hope]

Most "turn left" slip lanes are pretty obviously part of the road they
are turning from - they have a long(er) tail on that road, and only a
little bit that might be part of the second road. This particularly
applies to ones with a give way sign at the end of them. There are a
few where it's much harder to tell, I agree.

I think I remember once reading somewhere that if you can't tell which
street a given slip road belongs to, then by default it should belong
to the higher rated street it is attached to. E.g if it connects a
primary and secondary street, then it should be primary_link, and part
of  the primary street, not the other way unless it obviously is part
of the secondary road on the ground.

Highway = service is more for back alleys, roads in shopping centres,
connecting drive-ways for off-highway service stations, little tarmac
stubs that go nowhere and aren't named, I would think. I must admit I
hadn't thought of using them for turning lanes.

Stephen

On 10/03/2008, Darrin Smith <beldin at beldin.org> wrote:
> On Mon, 10 Mar 2008 20:15:00 +1030
>
> Jack Burton <jack at saosce.com.au> wrote:
>
>  >
>  > Where they have addresses on them, so we can verify what street
>  > they're part of, I agree. Where they don't have addresses on them,
>  > there's no way of knowing for sure which of the two intersecting
>  > streets they form part of, so I don't think a name would be
>  > appropriate.
>
>
> That's a good call, those are the ones where "highway=service" rises to
>  the occasion I think :)
>
> --
>