1 55 14 888 2 56 15 887 4 14 15 887 888 3 12 14 15 887 888 5 12 14 15 6 12 13 14 15 12 13 38 52 64 65 66 67 68
A tile with two small stations can be upgraded to any green tile with one station and the same exits.
A tile with one small station can be upgraded to any green tile with one station.
A tile with one large station can be upgraded to any green tile with one large station.
Russet upgrades.
Bristol