Now we have the option of specifying tunnels. If it works as I understand it it will be awesome. Firstly they will be shown differently on the map and secondly the car will propagate through the tunnel when GPS is lost. No specific details on how to use it but small consensus on the thread above is to put a junction node in just before and after the tunnel (if not already there) and then tick the TUNNEL box.
This was high on my wish list so I really hope it works!
Cheers,
Gav…
They make an announcement over the radio asking everyone to turn their engines off. :lol: Though it does surprise me how many people don’t know they can do that, and hence turning on your radio when you go into a tunnel is a Good Thing ™.
Well, Waze will eventually realise you haven’t actually emerged, but it won’t know where you really are, so I imagine it will go into “you’re around here somewhere but I’m not sure where mode” until it regains signal when you emerge. (Yes, it would be interesting to know where - the sensible thing would be to return to the last known location i.e. at the start of the tunnel, but I don’t know if that’s actually what it does.) From a navigation point of view, this is no worse than it leaving you at the start of the tunnel because it doesn’t know where you are.
Obviously I dont know how Waze will implement it but if it was me I would propagate the car symbol through the tunnel until the next non-tunnel segment assuming the driver follows the Waze suggested route. So Waze could assume a jam in the tunnel if you don’t emerge at the expected time?
Your phone will use the cell towers to triangulate you to the repeater location, which is not necessarily near the tunnel route (though unlikely to deviate far). The GPS/GLONASS location information is only the most accurate available, not the only available location information for the phone. Thus on long tunnels, you should see your estimated location jump a couple of times already.
