White Box Autonomy

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FSD proceeds toward a railway crossing before a hard braking intervention

Date
Date unknown
Developer / operator
Tesla
System
FSD (Supervised)
Event type
Traffic-rule or infrastructure interpretation
Outcome
Failure / challenging
Automation status
Driving automation engaged — confirmed
Curator-reviewed

Summary

With FSD (Supervised) engaged, the vehicle continued forward in a railway-crossing environment to a point where track clearance became a concern to the driver, who applied a hard braking input strong enough to displace unsecured objects in the vehicle.

Written by White Box Autonomy from the sources listed below.

What is observable from the evidence

  • The vehicle approached or entered a railway-crossing environment with FSD (Supervised) engaged.
  • The vehicle continued forward into a situation where railway-track clearance became a concern to the driver.
  • The driver applied a hard braking intervention.
  • The braking was forceful enough that unsecured objects inside the vehicle moved substantially.
  • No collision occurred.

Automation status

Driving automation engaged — confirmed

Whether the driving-automation feature was engaged is a separate question from whether it caused the event.

System / software version

Not identified in the available sources.

Causal attribution

Undetermined

The available evidence does not establish a cause. Involvement of a driving-automation system is not the same as its being a cause.

What remains unknown

  • Whether the system correctly identified the railway crossing and track area.
  • Whether the system recognised the need to maintain sufficient downstream clearance before entering the crossing.
  • Whether queueing, traffic signals, road geometry or route planning contributed.
  • Whether the vehicle would actually have stopped within the railway-track area without intervention.
  • The exact remaining distance and safety margin at the moment of intervention.

Interpretation

Curator interpretation — this goes beyond what the evidence directly shows

The event is consistent with inadequate anticipation of a railway-crossing clearance constraint. The driver intervened forcefully because of concern that the vehicle could become stopped within or too close to the track area. The available video documents the trajectory and the intervention but cannot establish the internal cause or what the system would ultimately have done without intervention.

Sources & evidence

The sources below are the evidence. The summary and any interpretation on this page are written by White Box Autonomy and are not themselves evidence.

  1. YouTube video · White Box Autonomy

    White Box Autonomy video showing a railway-crossing event requiring hard braking intervention

    First-person clip recorded by White Box Autonomy showing a railway-crossing approach that ends with a hard braking intervention.

About this record

Review status: Curator-reviewed. What the review statuses mean.

Record last reviewed or updated: 30 August 2026.

To report an error or raise a concern about this record, contact zuduo.zheng@uq.edu.au.