I would disagree. The engineers absolutely steer the space of available solutions. Caltrans is a prime example, I have personally met Caltrans engineers who might as well have stepped out of a time machine from 1970. This absolutely influences the priorities of both the state and the cities that depends on the framework it sets up.
And yes city politics is separately a major problem.
This is the problem with outsourcing everything in the name of "efficiency".
If you don't actually do things in house, you don't know how to do them.
Everybody wants the US to manufacturer and build more until they have to cut a check.
Everyone hates Nassim Taleb and he can be an asshole, but his math is impeccable. When your concern is with someone's personality because you don't like their math, then you've lost the plot.
I got into a fight with my city over nonexistent crosswalks (the adhesive line strips wore off) near my home in an area where drivers have a hard time realizing where pedestrians cross due to a unique road setup.
You can’t just paint lines. The project ended up costing about $1.2M and required a traffic study, some stupid ADA assessment and accommodation that frankly any layperson could have figured out, and a complete streets assessment.
Basically, they sent out a few engineering technicians who make $20/hr, billed out 80 hours at $120 to count cars and people, and printed some boilerplate analysis (@$250/hr). The end result was they painted new crosswalks and added textured curb surfaces for ADA compliance, which allowed for the use of recovery act funds.
I am willing to guess they probably did, even if it doesn't seem directly related.