Modular ramps

Instead of the unsightly ramps, modular ramps would be preferable, as they would have fewer height limitations.
In some cases, various hollow building blocks could then be constructed underground to house conveyor belts, rails, pipes, etc. This would greatly increase construction possibilities.
I see potential here for new research in the late game.

Since the last update, "modular ramps" have been added to the game. These things are awful, clunky, and far too inflexible. That's not what I meant. My idea was actually to assemble a ramp from several parts, exactly as needed.