Basildon in context: Street-network sprawl trends

Basildon in context

3.54.24.95.6<19751976–19901991–20052006–2020SNDi of street additions
3.54.24.95.6<19751976–19901991–20052006–2020SNDi of entire street network
BasildonEngland (Region)United Kingdom (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Basildon plotted against England and United Kingdom. The SNDi of new construction in Basildon peaked in 1976-1990, compared to England which peaked in 1991-2005 and United Kingdom which peaked in 1991-2005. Most recently, Basildon's incremental SNDi fell from 5.14 to 4.23 between 1991-2005 and 2006-2020. In terms of the aggregate network, Basildon ranked 124th out of 124 cities in England and 140th out of 143 in United Kingdom as of 2020.

New Street Additions (2006–2020)

SNDi value
4.23
Rank in United Kingdom
77th of 143
Rank in England
69th of 124

Entire Network (Aggregate)

SNDi value
5.24
Rank in United Kingdom
140th of 143
Rank in England
124th of 124

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
BasildonBesanconGelemso

In new street additions, Basildon built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Besançon built increasingly disconnected streets from 1975 through 1991-2005, then improved and Gelemso fluctuated in its street-construction patterns. Looking at the full network, Besançon and Gelemso both became progressively more disconnected, while Basildon grew more disconnected from 1975 through 1976-1990, then improved.