How would the NY Subway be mapped if we removed all branching, focused on transfers, avoided duplication, and assumed constant frequency?

How would the NY Subway be mapped if we removed all branching, focused on transfers, avoided duplication, and assumed constant frequency?

While not directly actionable, it still feels like it could be useful to know what an ideal geometry would be in a real city.

Who knows, maybe the cost savings would be significant and some measures would be more justified than can be predicted before doing this exercise.