[OSM-talk] cycle transit tagging (also applies to Motorail)
simon at zymurgy.org
Thu Sep 4 11:27:07 BST 2008
There's a few cycle routes that go through places where cycles are not
allowed, tunnels and bridges, such as the Dartford crossing over the River
Thames at Thurrock.
In places like these, there's a cycle shuttle service - where the crossing
control people (who escort the dangerous loads etc) will load the cycle onto
their vehicle at a rendezvous point, and you ride with them through the
tunnel, and they unload you and your bike at another rendezvous point, where
you can continue the journey on your bike.
There's a similar service through the Channel Tunnel (though that one costs
money, and needs booking in advance)
Of course, a cycle route planner should know that this is a route available to
Is it a ferry, available only to cyclists? How should this be tagged? How
should the rendezvous points for the service be tagged?
For that matter, how should the normal motor vehicle Eurotunnel service
through the Channel Tunnel be tagged, Motorail services, or other vehicle
carrying land-based services be tagged?
(I think this was discussed briefly on the talk-de list back in November 2007)
The routing engines should be able to cope with the concept of your chosen
mode of transport temporarily being able to transit a link (eg, rail tunnel)
that would normally not be available to it, without being carried by another
vehicle. It's conceptually the same to a routing engine as a ferry and
ferry_terminal, but you might not want it rendered on maps the same way.
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