Yes, you are right, many roads especially in the south part where cars can no longer pass through. I have explored them on my dirt bike in the last 18 months since I moved to Palm Bay. The compound is a great bonus to those who live nearby. Hope its not ruined if the city extends St Johns Heritage Parkway...
This place is known as the compound. And it was built in the 1980's as a result of mismanagement as a proposed new town to house thousands. The roads were all built but there was no market for that many houses/lots and the company went under in 1991.