phil at trigpoint.me.uk
Mon Jun 12 15:30:08 UTC 2017
On Mon, 2017-06-12 at 09:34 +0000, Janko Mihelić wrote:
> pon, 12. lip 2017. u 10:58 Martin Koppenhoefer <dieterdreist at gmail.co
> m> napisao je:
> > A question might be in some cases whether they are one tunnel with
> > distant tubes, or 2 tunnels "which happen to have the same name",
> > because unlike the carriageways on a bridge, every tunnel tube is a
> > distinct structure, and sometimes different directions can be quite
> > far away and have different shape (i.e. they are not parallel).
> But they often have little connecting tunnels for emergencies and
> servicing, so in a way, you can say it's the same tunnel. The problem
> is, its hard to map underground connecting tunnels.
I would map those as separate tunnels and only map them as a single
tunnel is multiple ways share the same bore.
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