Blackout calendar
Seeded events feed — structured so a municipal events API can replace it without changing the constraint engine.
23-night festival. M1 recorded 164,300 journeys on its busiest Vivid Sunday; 600+ extra services run.
Interchange nodes to Olympic Park must remain fluid across the full show period.
Network-wide blackout. Harbour foreshore access is entirely metro-dependent.
SCG event series driving sustained CBD evening peaks.
Parade night converts the overnight window into an absolute peak.
Finals crowds interchange heavily via Central and Sydenham.
Horizon strip
Each cell is one week of the 52-week horizon; red marks a week intersecting a blackout on any segment.
T-countdown milestones
Total lockdown of possession boundaries, times and dates. Timetable changes published for long-range passenger notification. New major possessions after this point require executive override.
Algorithmic checking of worksite limits and resolution of concurrent work incompatibilities via the matrix.
Train Alteration Advice finalised and the working timetable published.
Ballast and plain line rail deliveries confirmed; RRV and MEWP allocation locked into the schedule.