DISCUSSION. VICTORIA LINE: EXPERIMENTATION, DESIGN, PROGRAMMING, AND EARLY PROGRESS.

Keywords: VICTORIA LINE, UNDERGROUND, RAILWAYS, EXPERIMENTS, DESIGN, PROGRAMMING, TUNNELS, CONTRACTS, DEVELOPMENT, PLANNING, TUNNELLING, MACHINERY, HYDRAULIC, DRIVING, SHIELDS, SHIELD DRIVEN, DIGGERS, NETWORKS, ANALYSIS, TUBES, CLAYS, LONDON CLAY, POCKETS, GRAVEL, SUBSOIL, SURVEYS, TARGET, DATES, LININGS, STATIONS, PLATFORMS, LONDON, VICTORIA LINE, UK