MRA and tunnels
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@Herman-Veldhuizen ...then you are lucky.
The reasons are:- Navigation systems can also interpolate their own position from direction and speed. But that only works in straight tunnels.
- In some tunnels are so called beacons installed, by this navigation systems can also calculate the actual position (in GoogleMaps, this option must be activated in settings).
- In other tunnels there may be TunnelSat installed. This is an advanced tunnel GPS system that extends reliable satellite navigation underground, delivering accurate, real-time positioning signal.
It depends on the tunnel operator.
@Guzzist the fact that it worked in all tunnels made me think that HERE maybe has made an improvement (i assume a newer version of the sdk is used since I last tried it). The cursor followed the tunnel shape.
I will soon drive through the tunnel again in which I know MRA was struggling.
I dont think that I made any changes on my phone to settings to improve the gps accuracy. -
Never knew about the beacons in tunnels or activation in settings. Just activated mine in Google maps. Thanks for that.
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i drove through many tunnels in Norway today, including the 25km long Laerdals tunnel. MRA worked without a glitch inside these tunnels, no spinning, no jumping to roads above the tunnel. This is with the 5.0.3 version. I even had a shaping point inside one of the tunnels and that worked as well.
@Herman-Veldhuizen
I had exactly the same experience when I was in Norway last year. I also couldn't remember any problems in any oher tunnel I ever used: Neither in the alps, nor in the german tunnels like Elbtunnel.Greetings
Thomas
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