I've added an example from the past. → "Past case" Ken-O Expressway Hachioji Minami IC
A digression about highway pop-up production
This was the first time I saw a drawing of a highway, but even though it was full of lines, it was all black.
The details of the work are different depending on whether detailed data is provided and there is a "yes" pattern or a "no" pattern.
When I went to the site where the molds were made for this job, I remember a word from the mold maker that made me scream, "Who designed this?" (good memory)
Sorry if this is too simple.
But if I were to make a reduced version now, I would change the design.