Grays in context: Street-network sprawl trends

Grays 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
GraysEngland (Region)United Kingdom (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Grays plotted against England and United Kingdom. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Grays's incremental SNDi fell from 5.55 to 4.43 between 1991-2005 and 2006-2020. In terms of the aggregate network, Grays ranked 122nd out of 124 cities in England and 138th out of 143 in United Kingdom as of 2020.

New Street Additions (2006–2020)

SNDi value
4.43
Rank in United Kingdom
88th of 143
Rank in England
80th of 124

Entire Network (Aggregate)

SNDi value
4.74
Rank in United Kingdom
138th of 143
Rank in England
122nd of 124

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
GraysAberdeenAlipurduar

In new street additions, Grays and Aberdeen both built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Alipurduar built increasingly disconnected streets over time. Looking at the full network, Aberdeen and Alipurduar both became progressively more disconnected, while Grays grew more disconnected from 1975 through 1991-2005, then improved. Grays and Alipurduar have been converging in their street-network character since 1975.