SFMTA's train system running on floppy disks; city fears 'catastrophic failure'

Scope of the Problem (Beyond Floppies)

• Many argue the floppy angle is a headline hook; the real issue is a full train control system at end-of-life.
• System was designed for ~20–25 years and is now beyond that; major components (onboard computers, servers, loop cables, comms) need replacement.
• The inductive loop cable reportedly has very low bandwidth and physical fragility; past issues include trains damaging the loop.

Floppy Disks: Risk vs Reality

• Several commenters say floppies themselves are not the core risk: they can be cloned, imaged, checksummed, and replaced; floppy emulators (flash/USB) exist.
• Others note media degradation, shrinking supply of blank disks, and the chance of corrupted commands leading to dangerous behavior.
• Some suspect the agency is using “floppy disks” as a vivid symbol to sell an overdue, broader upgrade.

Why Not a Simple Emulator Fix?

• Technically-minded commenters assert a Raspberry Pi or commercial floppy emulator could replace the drive cheaply.
• Pushback: safety‑critical systems need extensive validation, liability coverage, and slow certification; “weekend hacks” don’t cut it legally or politically.
• There is disagreement on whether an incremental “band‑aid” is acceptable versus doing a full system overhaul once.

Cost, Procurement, and Governance

• Reported upgrade is on the order of hundreds of millions of dollars, including ~$36M just for consulting; some calculate ~$2.6M per train.
• RFPs for both vendor and consultant are recent; no contractor is selected yet, implying a long timeline (possibly ~a decade).
• Several comments highlight US public works patterns: megaproject bias, heavy compliance/engineering paperwork, low public‑sector pay driving reliance on contractors, and weak in‑house expertise.

Debate Over “Cutting Edge” and Journalism Quality

• Strong criticism that describing floppy‑based, no‑HDD systems as “cutting edge in 1998” is misleading; others respond that transit tech lags consumer PCs and prioritizes proven reliability.
• Multiple people note factual sloppiness in the article (confusing 3.5" vs 5.25" disks, vague timelines, unclear actual hardware).

Broader Transit & Political Context

• Commenters generalize to US transit dysfunction: chronic underfunding, political point‑scoring, cronyism, “jobs program” incentives, and voters rejecting bond measures that would fund upgrades.
• Some defend public workers as constrained by politics and budgets; others blame public agencies for complacency, corruption, and lack of accountability.