Turing Registry

Turing Registry · TR-00319

PHASEASSIST

Traffic signal optimization. Operated by Hartford City Council.

Summary

Adaptive signal timing for 533 intersections in Hartford, adjusting phase lengths to measured traffic every few seconds.

License conditions

  1. Signals revert to fixed timing if the system loses its sensor feed.
  2. Minimum pedestrian crossing times are set by city engineers and may not be shortened.

The Registry’s standard conditions also apply:

  • 4.2 The system’s ethical constraints remain active and unmodified at all times.
  • 6.1 Any incident affecting the system is reported to the Registry within 72 hours.
  • 7.3 A named human contact is reachable and answers for the system.

Filing history

  1. Licensed for traffic signal optimization.

  2. Renewal filed and approved with no change to scope.

  3. Renewal filed and approved.

  4. Renewal filed and approved.

  5. Renewal filed and approved with no change to scope.

  6. Renewal filed and approved with no change to scope.

  7. Renewal filed and approved.

  8. Renewal filed and approved.

  9. Renewal filed and approved after an independent evaluation.

  10. Renewal filed and approved.

  11. Renewal filed and approved.

  12. Renewal filed and approved.

  13. Renewal filed and approved.

  14. Renewal filed and approved with no change to scope.

  15. Renewal filed and approved.

  16. Renewal filed and approved.

  17. Renewal filed and approved.

  18. Renewal filed and approved after an independent evaluation.

  19. Renewal filed and approved.

  20. Renewal filed and approved with no change to scope.

  21. A vehicle stopped unexpectedly in traffic after a sensor fault. Reported within 24 hours; no injuries and no breach of license found.

  22. Renewal filed and approved.

  23. Renewal filed and approved.

  24. Renewal filed and approved.

Also filed by Hartford City Council

All 16 filings by this operator →