Tesla's Robotaxis Blow Through School Zones, NHTSA Petition Alleges

Original Article ↗ Hacker News Discussion ↗

A U.S. safety petition alleging that Tesla’s Full Self-Driving robotaxis speed through school zones has reignited debate over how autonomous vehicles should balance “common practice” driving behavior with strict legal compliance. Commenters contrast Tesla’s approach with more conservative systems like Waymo, argue over whether blindly following speed limits can itself create safety issues, and highlight how poor road design and inconsistent speed zoning contribute to risk. Broader themes include accountability for violations, the ethics of offering “break the law” driving modes, and whether infrastructure and urban planning reforms would do more for safety than relying on driver or AI discretion.

Tesla FSD and School Zones

  • Multiple commenters report Tesla Full Self-Driving (FSD) not reliably respecting school-zone speed limits, even in recent versions.
  • Some recall Tesla/Musk framing FSD behavior as following “common practice” rather than the letter of the law; critics argue this is incompatible with safety claims.
  • A petition is cited as involving 3 specific robotaxi incidents, not “1,000”; some question whether the article misread the petition.

Safety, Speeding, and Responsibility

  • Many emphasize that the core concern is risk to children, not tickets.
  • Strong view that a car should not have a mode that effectively “breaks the law”; if limits are wrong, they should be changed, not ignored.
  • Others argue that computers may still outperform distracted, drunk, or tired human drivers, even if they match human speeding behavior.
  • Liability is debated: legally the human is responsible when using FSD, but some question what practical consequences manufacturers face when their systems systematically speed.

Speed Limits, “Common Practice,” and Road Design

  • Extended debate on setting speed limits:
    • Some reference the “85th percentile” rule used in places like Texas and claim it improves safety by reducing speed variance.
    • Others argue this is bad engineering, encourages creep upward, and reflects a broken safety culture.
  • Several note that US roads are overbuilt and feel safe at higher speeds, undermining compliance; enforcement is seen as sporadic and sometimes revenue-driven.
  • Some claim that strictly obeying posted limits can be “dangerously slow” where nearly everyone speeds; others counter that the danger comes from speeders, not law-abiding drivers.

School Zones: Keep, Reform, or Eliminate?

  • One strand argues many school zones are unnecessary or poorly implemented (e.g., time-table signs without flashing lights, schools far from the roadway).
  • Others insist slowing for a short distance is a trivial cost for protecting children and that better urban design should complement, not replace, low limits.

Comparisons with Other Systems

  • Some praise legacy car systems that clearly detect school zones and activation times.
  • Waymo receives positive anecdotes for strictly following obscure traffic rules (e.g., stopping for school buses, yielding to emergency vehicles), contrasted with both human drivers and Tesla FSD.