Oswaldtwistle in context: Street-network sprawl trends

Oswaldtwistle in context

2.73.64.55.4<19751976–19901991–20052006–2020SNDi of street additions
2.73.64.55.4<19751976–19901991–20052006–2020SNDi of entire street network
OswaldtwistleEngland (Region)United Kingdom (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Oswaldtwistle plotted against England and United Kingdom. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Oswaldtwistle's incremental SNDi fell from 5.39 to 4.09 between 1991-2005 and 2006-2020. In terms of the aggregate network, Oswaldtwistle ranked 4th out of 124 cities in England and 6th out of 143 in United Kingdom as of 2020.

New Street Additions (2006–2020)

SNDi value
4.09
Rank in United Kingdom
69th of 143
Rank in England
63rd of 124

Entire Network (Aggregate)

SNDi value
2.77
Rank in United Kingdom
6th of 143
Rank in England
4th of 124

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

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
OswaldtwistleShahadiMadagali

In new street additions, Oswaldtwistle built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Shahadi fluctuated in its street-construction patterns and Madagali built increasingly disconnected streets over time. For the full network, Oswaldtwistle and Madagali both became progressively more disconnected, while Shahadi fluctuated in connectivity.