The floor area of different use types within the vision extent.
Usable areas = area of ecosystem * number of stories * proportion of useUsed to calculate: residents, workers, visitors, weekday trips, weekend & holiday trips, deliveries and pickups, graywater recycled, biodegradable solid waste, non-biodegradable solid waste and trips by purpose
Depends upon:
—Parameters: proportion of use
—Other metrics: ecosystem area