Slough in context: Street-network sprawl trends

Slough 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
SloughEngland (Region)United Kingdom (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Slough plotted against England and United Kingdom. The SNDi of new construction in Slough peaked in 1976-1990, compared to England which peaked in 1991-2005 and United Kingdom which peaked in 1991-2005. Most recently, Slough's incremental SNDi fell from 5.57 to 3.76 between 1991-2005 and 2006-2020. In terms of the aggregate network, Slough ranked 114th out of 124 cities in England and 130th out of 143 in United Kingdom as of 2020.

New Street Additions (2006–2020)

SNDi value
3.76
Rank in United Kingdom
50th of 143
Rank in England
44th of 124

Entire Network (Aggregate)

SNDi value
4.3
Rank in United Kingdom
130th of 143
Rank in England
114th of 124

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

What about similarly populated cities?

3456<19751976–19901991–20052006–2020SNDi of street additions
3456<19751976–19901991–20052006–2020SNDi of entire street network
SloughDiepslootBaraka

In new street additions, Slough and Diepsloot both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Baraka fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend.