How the network holds together

Every critical junction carries a parallel feed — one transformer fails, the grid holds without a flicker.

Platform walls poured in 1987 still carry load today, no retrofit, no apology — the spec was right the first time.

Bilingual Helvetica and naskh tiling means a rider from Helwan or Paris reads the platform at walking speed.

Enamel panels snap out in 90 seconds — the system was designed for the technician, not the photographer.