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“Autonomous”. You keep using that word.

You keep using that word. I do not think it means what you think it means.

ARD-Reporter does not understand the term “autonomous”.

Thanks for the pointer. Cars need 5G [networking] because of latency. Short reaction time for braking.


Nope. That’s not how it works. (Twitter thread starts at

Generally: Cars cannot trust externally supplied data (“cloud data”) for critical driving safety things. The cloud may be unavailable, the link into the cloud may be unavailable or the information fed into the cloud may be wrong, maliciously wrong or outdated. So all that external environment information is as trustworthy as the spoken traffic report after the radio news, it’s a machine readable, more detailed version of exactly that.

Ground truth from the sensors always has to be able to supercede that, and the car must always be able to drive safely with ground truth from sensors alone.

Published inPost Car Society


  1. AndreasLobinger

    As someone working on 5G i slowly understand where this missunderstanding comes from:
    we have a URLLC (ultra-reliable-low-latency) use case and we have a connected Car use case – which includes car2car communication (without the network inbetween, so something impossible with 4G right now) and this gets compressed in the press (ha!) into: 5G low latency for car communication.

    (note to myself: if i find someone from my company promoting…)

  2. Matthias Lange

    Actually, for Railway, the trains do believe in the data they receive for their safety.
    But then, it has been that way since the days of 18xx mechanical signalling.

    The proceed aspect signal lamp tells / told the driver, the path is safe.

    But then, railway is SO MUCH different to road traffic.

    • kris kris


      1. Scale matters. How many car drivers in Germany, vs. how many train drivers? How many cars vs. how many trains?
      2. Structure and organisation matters. Train drivers do not tend to mod their trains (I hope. Haven’t seen a riced up train in a long time, though). OTOH, I wonder what happens when somebody hacks into a train control system (or network) the first time, and be it just to show it’s possible and dangerous.

    • AndreasLobinger

      “the trains do believe in the data they receive for their safety.” actually they do, or how do explain the Bad Aibling incident? There was and is complains about the trains not being able to detect other trains.

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