Memo 4 of 4 · 7 May 2026 · 17 pages · Pre-feasibility grade

SBC Phase 0 Maglev vs HSRA High Speed Rail

A Head-to-Head Comparison on Cost, Services, Speed, Delivery, and Sovereign Value

Summary

What This Memo Covers.

HSRA Line 1 (Sydney to Newcastle) is spending $55 billion to tunnel under Sydney and deliver one service — passenger rail — to a corridor it will not complete until 2038. SBC Phase 0 delivers the same passenger corridor plus ten additional services, at lower cost per kilometre, with zero tunnels, with freight revenue in Stage 1, and with a construction methodology that causes zero disruption to existing infrastructure. This is not a marginal improvement. It is a categorically different approach to the same problem.

Contents

Sections.

What HSRA actually is — route, cost, timeline, what it delivers
What SBC Phase 0 actually is — route, cost, 10 services
Head-to-head — 18-row comparison table across every metric
The tunnel question — four cascading consequences of 59% underground
The services multiplier — $284M/service-km vs $14.6M/service-km
Construction methodology — TBM tunnelling vs productised elevated
Sovereign value — what HSRA buys vs what SBC builds
The honest case for HSRA — four genuine HSRA strengths acknowledged
The choice — the closing argument

Filing Details

Document Record.

Document Memo 4

SBC Engineering Memo Series

Date 7 May 2026

Pre-feasibility grade

Patent Coverage Full MMC Patent Family — AU 2026903869–2026904403

Companion patents

All figures are pre-feasibility grade — within ±20-30% of detailed design values. Detailed structural engineering required before any binding use. Contact brett.murrell@multimodalcorridors.com for technical enquiries.