The author's follow-up, Parking and the City, is a mere 534 pages and more readable. (Part of the reason Shoup has been so successful as a policy change agent is that he's a gifted writer.) Still goes for an academic price, unfortunately. https://www.amazon.com/Parking-City-Donald-Shoup/dp/11384971...
Henry Grabar is working on what will hopefully be a more popular-press approach: https://twitter.com/henrygrabar/status/1156649614596038656