This is the first completed module in a series of modules I am designing to construct a fully detailed underground subway system. The completed series will include straight tunnels, curved tunnels, station platforms, and more, all designed to support a custom city above.

This module is a dual tunnel section, where each track is fully enclosed. I use an accent color in each tunnel to designate the train line. For my city I am using Yellow and Dark Red, but you can use any colors you like. For all of the hidden parts, I have selected colors to minimize the number of unique lots and to minimize the total cost of building this module. Again, feel free to substitute any color you have available as they won't be seen once multiple modules come together to form a complete system.

I have spent hundreds of hours designing this and other modules for my subway, and it is a massively expensive project to build. Following my social accounts and purchasing these instructions are the best ways to show your support if you are a fan of this project. Thank You!