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Make Tunnels navigable

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  • Andrew Jennings commented  ·   ·  Flag as inappropriate

    I got stuck in Paris and lost and hour, due to Waze losing connection in tunnel. Would have been really handy to have this along with lane guidance.

  • Anonymous commented  ·   ·  Flag as inappropriate

    Yes why can't they just have the position move through the tunnel at the same speed as was detected before the car entered the "tunnel" segment. Will be close enough and will result in getting the correct exit instructions. If you get held up in the tunnel then the position would stop when the position reaches a non-tunnel segment and GPS is not available. Seems easy to implement to me, no beacons, no attempting to simulate an inertial navigation system....

  • Christer Humble commented  ·   ·  Flag as inappropriate

    There is a strange solution Waze has locked on, Beacons, which is only available in a few tunnels in the world.
    Give Waze support for countdown navigation, for example, using last known speed alternatives if Waze is connected to an Android Auto car, use information from the car for navigation in a tunnel. Beacons will never be installed World Wide.

  • Adrià commented  ·   ·  Flag as inappropriate

    TomTom app does this and it is incredibly accurate. Would help a lot.

  • Thomas commented  ·   ·  Flag as inappropriate

    Actually, i am not shure if this also applies to Waze, but some routes google maps, i dont know where to exit, as the map shows two lanes going to one. Inside the tunell it does not update the position. At least when entering a tunell you should be shown the exit you need to take. It is actually quite dangerous, as you try to get the text route while driving inside the tunell.

  • azr66 commented  ·   ·  Flag as inappropriate

    External sensors are crap. Pls. use the gyro. The technology is old as instrument flying. In former times the gyro costs millions, now we have then for "free" and we are talking about 25 sensors per km... Bad business! Nobody will be so stupid to install THAT (I hope so at least...)

  • Anonymous commented  ·   ·  Flag as inappropriate

    Kalmann filters are already the core of navigation and positiong apps and systems :)

    Realistically the way to do this is inertial guidance when gps is lost but as time since gps loss increases it will obviously become less accurate.

    Clamping to planned route at last known speed is realistically all that might be possible without other external data sources.

  • Miguel Villarta commented  ·   ·  Flag as inappropriate

    My idea of making tunnels navigable is not by using external sensors located into the tunnel which will be impossible to be broad applied and expensive. Instead the idea is to use sensors of mobile phone with simple calculation by interpolation of actual speed at the entrance focr example. Any other idea is welcome.I saw this function working on Sygic and it's fine

  • Jeff Underwood commented  ·   ·  Flag as inappropriate

    You could use accelerometers and gyroscopes to suppliment GPS data. Use accelerometers and gyroscopes to increase accuracy of location with with virtually no power increase. It would also allow navigation through tunnels and such when GPS location is lost. It would also prevent erroneous movement while stopped at a traffic light. There are companies testing this type of technology. One that I have been following but have no financial interest in is There are videos from navisens at

  • Anonymous commented  ·   ·  Flag as inappropriate

    Please put in the bluetooth-GPS transmitters into the Detroit-Windsor Tunnel, so that WAZE will work within that International Tunnel. Also warn when approaching or mapping this tunnel that you must have passports, and/or Enhanced Driver License to get in and out!

  • Anonymous commented  ·   ·  Flag as inappropriate

    Use Kalman filtering combination of GPS, accelerometers, etc to do dead reckoning. Even without that, you can guess the speed in the tunnel from the speed before and after the tunnel.

  • wim ham commented  ·   ·  Flag as inappropriate

    I back this idea up as well, when entering a tunnel, the location just goes nuts. it should be possible to interpolate the position on the current route and show the next instruction

  • CastroBR commented  ·   ·  Flag as inappropriate

    Had a TomTom 7 years ago that kept my average speed when entering the tunnel. It's nothing new really.
    But yeah bluetooth Obd2 support would be awesome.

  • Anonymous commented  ·   ·  Flag as inappropriate

    When you drive in a tunnel Waze stop the navigation. Please make that Waze drive whitout signal to the next instruction at the same speed that the way.

  • Sherlock McGyver commented  ·   ·  Flag as inappropriate

    I thought Waze already used accelerometer data to accomplish this, but then everytime I enter a tunnel, it just pauses. This is easily corrected.

  • Sam commented  ·   ·  Flag as inappropriate

    In London, there is a tunnel which forks underground. No satnav, WAZE included can get a GPS signal.

    It would be useful if Waze could give directions ahead of time when you approach an area or stretch of raod (eg a tunnel) where it knows (from prior users' experience) that it is certain or likely to lose signal.

    Additionally, or alternatively, there could be an user-selected option where, when signal is lost, Waze either a) considers the car to have stopped, or b) considers that the car is continuing at the same average speed as just before signal was lost.

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