Ipswich is reasonably well suited to post peak-oil life in many ways. Like much of the Old World, the design of the Suffolk human landscape was set in a time before oil-powered transportation, with its market towns and villages separated by modest distances of 10 to 20 miles. Ipswich itself is still compact enough to walk from one end of town to the other in less than a day, the planning regulations have kept development in check.
The population of England was just over 30 million in 1901  (source: ONS) which was before the Oil Age, rising to about 50 million in 2001. In 1901 Suffolk had a population of 384,000  and in 2001 it was 668,553 .
In 1901 the population of Ipswich was 66,630  and in 2010 it stands at around 130,000 . The population, post-peak oil is approximately twice what it was over a hundred years ago, before the Oil Age. Bearing in mind that we have a hundred years of scientific advances since then, it seems that it should be possible to feed this increased population from an area that previously fed about half the number using sustainable methods of agriculture.
There are, of course, significant differences – the modern diet is very different to that of 100 years ago.
- ONS http://www.statistics.gov.uk/downloads/theme_compendia/fom2005/01_fopm_population.pdf