Doncaster in context: Street-network sprawl trends

Doncaster in context

3.64.55.46.3<19751976–19901991–20052006–2020SNDi of street additions
3.64.55.46.3<19751976–19901991–20052006–2020SNDi of entire street network
DoncasterEngland (Region)United Kingdom (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Doncaster plotted against England and United Kingdom. The SNDi of new construction in Doncaster rose steadily, compared to England which peaked in 1991-2005 and United Kingdom which peaked in 1991-2005. Most recently, Doncaster's incremental SNDi rose from 6.15 to 6.3 between 1991-2005 and 2006-2020. In terms of the aggregate network, Doncaster ranked 98th out of 124 cities in England and 110th out of 143 in United Kingdom as of 2020.

New Street Additions (2006–2020)

SNDi value
6.3
Rank in United Kingdom
141st of 143
Rank in England
122nd of 124

Entire Network (Aggregate)

SNDi value
3.97
Rank in United Kingdom
110th of 143
Rank in England
98th of 124

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

What about similarly populated cities?

46810<19751976–19901991–20052006–2020SNDi of street additions
46810<19751976–19901991–20052006–2020SNDi of entire street network
DoncasterGrimsbySittwe

Doncaster, Grimsby, and Sittwe all built increasingly disconnected streets over time in new street construction. The same pattern holds for the full street network. Doncaster and Grimsby have been growing further apart in their street-network character since 1975.