These slides were missfiled in my collection, but take a gander at this horrific plan to gut the Hollywood District for a massive grade separated interchange at Sandy and 39th.
Though undated, I estimate this is from the late 30s. Old enough for Steigerwald Dairy bottle to be standing and for traffic congestion to be a thing.
Thank god they decided not to go forward with the plan, however the rendering is pretty refined indicating that they were far enough along in the process to be pumping out visuals for the public. It is shocking to remember how willing to destroy their neighborhoods for ease of traffic people were. Sort of reminds me of how we treat the internet today.
The accompanying aerial clearly shows little traffic, so this must have been purely anticipatory destruction. Even better!