[OSM-talk] Should the map be totally connected?

[Simon Hewison]

SteveC wrote:
> Just a thought, but should it be possible to get to every street from
> every other?

In an ideal world, yes, in practice, things happen like GPS batteries die 
half way along a route, and you don't pick up until later, leading to gaps, 
or you just forget to switch the GPS on, or the tracklog memory fills up.

> For example, right now you can't get from the UK to the US but you can
> (I think) get from the UK mainland to the Isle of Wight. What about the
> channel tunnel? :-)

The channel tunnel rail link is there, as is the railway line right through 
to Brussels, but the tunnel itself has no GPS coverage! Yes. It should be 
there as a rail tunnel, and I'm fairly sure that the approximate course of 
the tunnel is public knowledge. Failing that, anyone care to take a 3D 
accelerometer through there?

Car ferry routes, likewise, should probably be there. Easy to map, just 
bring the GPS up on deck.

Dover was looking a little scarce last time I looked.

--
Simon Hewison