The quote below sums up the problem. Blighted neighborhoods were chosen as a form of urban renewal. What determined blight?
This is a ‘melting pot’ area and is literally honeycombed with diverse and subversive racial elements. It is seriously doubted whether there is a single block in the area which does not contain detrimental racial elements … It is hazardous residential territory and is accorded a general medial red grade – Original FHA evaluator report for Boyle Heights, California
From highways carved through thriving ‘ghettoes’ to walls segregating black and white neighbourhoods, US city development has a long and divisive history
www.theguardian.com
Roads were the tool used to eliminate Black working poor neighborhoods which Whites called blight. That doesn't mean every inch of interstate had this problem. Certainly not. But wherever possible redlined districts were sought for removal. Redlining was a racist policy, is that fair to say? So targeting redlined neighborhoods is somehow clean from any racism? Add in the fact redlining depressed home and business values in these districts and it is clear the residents were screwed.
And back to Pete's point, again the man who made the claim in the book worked for Moses for a number of years. What makes everyone so convinced he must be lying about the overpasses?