Satnav that navigate through a tunnel?

foofi22

http://news.bbc.co.uk/1/hi/england/manchester/7817764.stm

chunter

foofi22 wrote: »

http://news.bbc.co.uk/1/hi/england/manchester/7817764.stm

but if you watch it in slow motion he wasn't touched.

madforIT

seems ronaldo was using his when he crashed in one today

scragend

Marty_J wrote: »

Is it possible to get lost in a tunnel?

Yep, try driving through the tunnels under Brussels - they have quite a few junctions and obviously sat nav is no help whatsoever. When the other people in the car can't read a map and it's rush hour it makes for interesting driving!

spud17

DatabaseError wrote: »

No!

(unless there are some satellites in a really, really low orbit )

Or it's a very high tunnel! :rotfl:

withabix

markymoo wrote: »

yes.. you crash into the wall

Especially if your name is Ronaldo...

withabix

chunter wrote: »

I'd be interested to know if Satnavs work in tunnels....

Expensive ones with gyroscopes built in can do this to some extent. Normally only built-in types have this.

Some portable ones 'guess' where you are based on speed and bearing when the satellite signal was lost.

But what's the point anyway?

Older satnavs had appalling lock times, so that might have something to do with it.

Not_so_wise_one

chunter wrote: »

but if you watch it in slow motion he wasn't touched.

I literally did just LOL :rotfl:

jackthenipper

Slightly off topic but my sat nav looses the sat signal if i'm surrounded by really tall buildings in the city, i.e Glasgow/Edinburgh.

superscaper

jackthenipper wrote: »

Slightly off topic but my sat nav looses the sat signal if i'm surrounded by really tall buildings in the city, i.e Glasgow/Edinburgh.

That's because it's practically the same as being inside. GPS can handle some "bouncing" off buildings but not if you're effectively "enclosed".