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Green/red lines in navigation

Discussion in 'Model S' started by rscott0, Oct 25, 2016.

  1. rscott0

    rscott0 Member

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    Location:
    Massachusetts
    At some point since v8, I've noticed that the navigation screen sometimes has green (and occasionally red) lines on roads. Is there any documentation for this? I searched the forums, but didn't find anything.

    I haven't spent much time trying to figure it out, but it seems that the red designates traffic (I don't encounter a lot of traffic, but the few places I saw red were on the side of traffic lights where traffic stops). Green would presumably mean that traffic isn't detected.

    The green lines show on roads that I haven't traveled on, so presumably this is from data gathered from cars. There are lots of side roads that it doesn't include, and I have noticed breaks in the lines.

    I'm suspecting that the green lines only appear in places Teslas have driven (not including other cars, which would rule out data from other companies), where Tesla knows AP can be enabled.

    Could this perhaps be related to v8 using radar, and fleet learning (e.g. Tesla's comment about v8 that "If several cars drive safely past a given radar object, whether Autopilot is turned on or off, then that object is added to the geocoded whitelist.”)? Was this there before, and I just didn't notice?
     
  2. Xenius

    Xenius Member

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    That is traffic. If you tap the map the icon on the right that looks like three cars stacked on top of each other is the traffic overlay. If it's a dark grey you'll see the traffic info. Pretty sure it's googles traffic info.
     
  3. Max*

    Max* Autopilot != Autonomous

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    That's been there since before v8. It seems to be based on the data that Google maps gathers, not related to Tesla's driving on the roads.
     
    • Like x 1
  4. rscott0

    rscott0 Member

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    I'm surprised I didn't notice it before.

    The reason I suspected non-Google data is that it seems incomplete (e.g. missing a chunk of road in one place going one direction, but not the other, and the lines stopping abruptly where you would not expect them to).
     
  5. bob_p

    bob_p Active Member

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    The traffic lines are generated along roads that are getting enough travel to provide a reasonable estimate of average traffic speed.

    Since there's little traffic over night, in the early morning, you'll likely see few area roads with the traffic lines. And as more people start driving, not only will there be traffic lines on the highways, but the major surface and neighborhood streets will also "light up" with traffic data.

    I've found the new green/red lines can be difficult to read at times, especially when displaying a satellite map.
     
  6. wamochi

    wamochi Member

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    After v8, some of the traffic lines are pink/peach. Is that the super heavy congested traffic or is that something between red and yellow?

    Before v8 the really bad stuff was like a dark dark red, almost brown.

    I don't drive much in traffic, but last night we were driving in rain and trying to choose between 5 and 805 and saw all the pink lines ...
     
  7. grichard

    grichard Member De-Luxe

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    Peach-pink seems to be worse than bright red, in my experience and when comparing with google maps on my phone.

    Kind of an unintuitive color choice, IMO.
     
  8. kevinf311

    kevinf311 Member

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    Agreed. I have lots of terrible traffic around me and when the color changed from the standard Google Maps dark red (which I refer to as "Angry Red") to this Peach-Pink I wasn't entirely sure if it was the replacement for angry red or if Red red was now the highest and this was another intermediary.

    Luckily, for certain definitions of lucky, I found this out when I chose a path with Peach-pink and was sitting still for more time than I would have liked...

    I suppose this was to address some of the concerns about traffic and route overlays obstructing the view of map details?
     
  9. wamochi

    wamochi Member

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    thanks for the feedback. that's what i thought too. usually 805-S is horrendous vs. 5-S at that time of day, but it was raining and we had about 10 sec to decide before the split and i said they must have changed the bumper to bumper color to PINK. my husband thought that was ridiculous, but turns out i was right :rolleyes: (as usual)
     

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