How viable are Garden Cities?

Interesting piece regarding the planning and implementation of garden cities in the UK. Ebenezer Howard’s concept has been attempted at several locations across the globe, primarily in European countries, as well as the United States (New Jersey) and Australia (Canberra, Adelaide). Can garden cities be a long term solution to the perennial housing shortages emerging on a global scale and are the infrastructural challenges negotiable in order to meet this need in the short term?