"A roadmap is what I use to illustrate the steps necessary to get to a goal. Usually it gives me an overview of the resources required, and how each piece fits together to make what I want to happen." Senku explained, so no, it wasn't really a map of roads.

"In the case of the cell phone and radio tower, I needed components like plastic, wiring, Rochelle salts and vacuum tubes for example, and then each of those components gets broken down into the basic parts that make up the whole. It's like a blueprint."