On 2020-05-24 23:16, Mateusz Konieczny via talk wrote:
> Can you give an example of such untaggable restriction?
In the UK there are many small roads signed as "Unsuitable for HGVs."
Legally you are allowed to drive your 44T truck down there, but you will
almost certainly get stuck. How do we tell the router?
There are also many roads signed as "No HGVs except for access." It is
tempting to tag them as "hgv=destination" but that doesn't cover the
case where you are allowed to follow that route for many miles and make
several turnoffs IF you "need access". The current definition of
"access=destination" doesn't allow routers to distinguish between truly
"first/last segment only" and "its fine if you are going to/from this
general area".
Discussion here shows the
http://www.trucknetuk.com/phpBB/viewtopic.php?f=5&t=140446
And then there are all the subtle differences in the semantics of the
vehicle classes, but that's a whole different can of worms...
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