The United Nations predicts the world population will increase from 7.3 billion
to 9.7 billion by 2050 and 11.2 billion in 2100.
The UK population at the 2011 census was 63M. The Office of National Statistic’s median population forecast for 2050 is 78 million, and for 2080 it is 82 million. For high life expectancy it is 80M and 90M.
Additionally, in 2015 1.8 million households were on Council waiting lists which represents approximately 5M persons who already need housing.
Thus to house all the existing (5M) and forecast (15M to 19M) demand the UK must provide for at least 20 million additional persons by 2050 and 24 million by 2080.
To put the figures in perspective, to house 24M people in Howards 30,000 person towns would require 800 new Garden Cities.
ConnectedCities is a means to accommodate this growth with the minimum impact on the existing population and settlements, and with the least traffic generation and energy usage.
Each area is required to provide for at least its pro rata portion, either internally or by assisting other areas to shoulder an additional share of the burden.
The metropolises may decide to accommodate their share internally, in which case the population of London will rise from 8.2m to 10.8M by 2050 and 11.3M by 2080. Birmingham will rise from 1.1M to 1.4M and 1.5M. To do so in sustainable locations will be easiest if growth is focused on pedsheds of rail stations. A good example is Lewisham in SE London where the population around the station has grown from 500 to nearly 5000. Alternatively the metropolises may choose to transfer their growth to adjacent ConnectedCities.
Broadly three projections are possible.