Do you have an example?
Whether it's a bridge or tunnel is fairly easily defined by determining
which is taking the load.
If a tunnel's structure was removed, would whitewater's above it
collapse? If 'yes' then it's a tunnel.
DaveF
On 06/06/2020 16:48, Martin Koppenhoefer wrote:
sent from a phone
On 5. Jun 2020, at 15:44, Dave F via talk <talk@openstreetmap.org> wrote:
There can't be both a tunnel and bridge. It's one or the other. This goes for
all scenarios, including roads.
you can have both, but it is rare...
and it depends on your definitions of course (e.g. you might call it an
enclosed bridge or sth. like this). In engineering standards, tunnels are not
only dug structures but also completely enclosed linear ways with certain
length (e.g. in Germany it’s from 80m onwards according to concrete standards,
IIRR), which can also in exceptional cases lead over a bridge.
Cheers Martin
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