I don’t want to add too much to this, except to say that neighborhoods like Shaw were in real danger of being destroyed by freeways/ highways. Read the poster and tell me what you think in the comments.
A bit of DC 60s anti-Freeway expression
The thing I like about primary sources in history is that it occasionally reminds us of the things forgotten. We know of Emmet Till, the Birmingham Sunday school children, Medgar Evers, and Malcolm X, however those other people require Googling. Yet, the people who this flyer/poster was aimed at knew who was Col. Lemuel Penn.