The four tenets of vibrancy transformed for the car-based city get reduced to two:
- Loose zoning/permitting constraints to enable both a wide diversity of businesses as well as population density where there is consumer demand (apartments, condos, townhomes)
- Maximized mobility with a well-designed, high-capacity arterial and freeway network
The three legacies of the [Jane] Jacobsian turn:
- It diminished the disciplinary identity of planning.
- Privileging the grassroots over plannerly authority and expertise meant a loss of professional agency.
- the seeming paucity among American planners today of the speculative courage and vision that once distinguished this profession.
