Great Yarmouth in context: Street-network sprawl trends

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Great Yarmouth plotted against England and United Kingdom. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Great Yarmouth's incremental SNDi fell from 4.77 to 3.54 between 1991-2005 and 2006-2020. In terms of the aggregate network, Great Yarmouth ranked 24th out of 124 cities in England and 29th out of 143 in United Kingdom as of 2020.

Rankings go from most connected to most disconnected — rank 1 is the most connected.

What about similarly populated cities?

• KK Market Centre, Kenya
• Lodwar, Kenya
• Hengshan, China
• Gampola, Sri Lanka
• Gyobingauk, Myanmar
• Tobolsk, Russia

In new street additions, Great Yarmouth built increasingly disconnected streets from 1975 through 1991-2005, then improved, while KK Market Centre built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns and Gampola fluctuated in its street-construction patterns. For the full network, Great Yarmouth and Gampola both became progressively more disconnected, while KK Market Centre became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Great Yarmouth and Gampola have been growing further apart in their street-network character since 1975.