General

Near Miss

Winding up our first 3000 mile road trip in our 2020 model 3, we were traveling East on Interstate 10 west of Baton Rouge. Traffic was very heavy but moving at about 70 miles an hour. I was in the center lane using autopilot when a car moving up in the left lane at about 80mph swerved in front of me all the way into the right-hand lane. I had to jerk the wheel right and hit the brake to avoid having my left front hit by this Yahoo. We missed an accident by inches. Curious why the car did not respond to this near collision. Does the crash avoidance only work from the front?

Comments

  • edited December 2020
    Every scenario is different. So there are a multitude of possibilities here, most of which revolve around the car may have seen everything and decided that there was do need to respond. The car may have only seen part of what was going on and never got an input that would have triggered any kind of response. This could be due to speed and trajectory of objects vs sensor(or computer) capabilities, or a multitude of other reasons...

    Every situation is extremely unique in all the variables in play, and 1mph could be all it takes to make a completely different decision.

    The other think I like to say that is related...just because you(human) would have reacted in a certain way, doesn't mean that you NEEDED to.
  • Dang, can't comment on why car didn't react but glad an accident was avoided.

    > @ggreen4077_98580418 said:
    > Winding up our first 3000 mile road trip in our 2020 model 3, we were traveling East on Interstate 10 west of Baton Rouge. Traffic was very heavy but moving at about 70 miles an hour. I was in the center lane using autopilot when a car moving up in the left lane at about 80mph swerved in front of me all the way into the right-hand lane. I had to jerk the wheel right and hit the brake to avoid having my left front hit by this Yahoo. We missed an accident by inches. Curious why the car did not respond to this near collision. Does the crash avoidance only work from the front?
  • I wonder if a record of this incident is collected from the on-board computer and input into the Tesla Dojo neural network
  • There are several possibilities here:
    1. As derotam noted, perhaps the car decided that the idiot was going to miss you and so did nothing.
    2. Perhaps you reacted just before the car did; if you had done nothing, perhaps it would have.
    3. Perhaps the car did react - but you didn't notice because you were in the process of reacting also. If it had started to turn and brake, you may not have noticed as you were starting to do the same.
    4. Perhaps the car missed the event entirely, and if you hadn't reacted your post would have been discussing how you had a 70 mph collision and walked away without a scratch.

    It's really hard to tell; I'm guessing that the deactivation of Autopilot followed by hard steering/braking inputs was enough of a flag to get the footage from the cameras uploaded to Tesla for analysis, but it's unlikely you could ever get that analysis. Wouldn't that be a fun job though - "Traffic collision analysis specialist"?
  • Good points...so where is that dashcam footage for us to analyze!
  • Elevated expectations, breed complacency...

    Drivers becoming complacent is as dangerous as distracted driving

    Enjoy the tech, but use caution
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