The Well There's Your Problem podcast has an excellent episode about traffic engineering where they go into diverging diamonds a bit.

I think this is also the episode where they lay out essentially the mission statement of the show, that engineering decisions reflect the politics of those who mandate them, and how the hard sciencey disciplines we think of as "objective" are anything but.

It's a shame they haven't put it on their main channel, which is here: https://youtube.com/@welltheresyourproblempodca1465