I can’t read the second article, but the first does not cite the later work and makes exactly the same mistake as Winner: sitting at a desk, assuming that (per Caro) parkways were the only way to get there, and looking only at the parkway bridge heights. The point is that parkways were by definition not for commercial traffic and you could get there by routing around the parkway overpasses, and the contemporaneous bus schedules show that they did.
Since busses aren't ”commercial”, I'm not sure why we need to go around measuring bridges to decide if this was an anti-poor design decision (which in many areas and times in the US would also make it a racist one).
