Folkestone 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 Folkestone plotted against England and United Kingdom. The SNDi of new construction in Folkestone peaked in 1976-1990, compared to England which peaked in 1991-2005 and United Kingdom which peaked in 1991-2005. Most recently, Folkestone's incremental SNDi fell from 4.17 to 3.47 between 1991-2005 and 2006-2020. In terms of the aggregate network, Folkestone ranked 62nd out of 124 cities in England and 70th 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?

• Melton, Australia
• Mariveles, Philippines
• Fazendinha 13, Brazil
• Tierra Blanca, México
• Schweinfurt, Germany
• Sungai Penuh, Indonesia

In new street additions, Folkestone built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Melton built increasingly disconnected streets from 1975 through 1991-2005, then improved and Tierra Blanca built increasingly disconnected streets over time. For the full network, Folkestone and Tierra Blanca both became progressively more disconnected, while Melton grew more disconnected from 1975 through 1991-2005, then improved. Folkestone and Melton have been converging in their street-network character since 1975.