York in context: Street-network sprawl trends

York in context

33.544.55<19751976–19901991–20052006–2020SNDi of street additions
33.544.55<19751976–19901991–20052006–2020SNDi of entire street network
YorkEngland (Region)United Kingdom (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with York plotted against England and United Kingdom. The SNDi of new construction in York peaked in 1976-1990, compared to England which peaked in 1991-2005 and United Kingdom which peaked in 1991-2005. Most recently, York's incremental SNDi fell from 4.48 to 3.07 between 1991-2005 and 2006-2020. In terms of the aggregate network, York ranked 60th out of 124 cities in England and 68th out of 143 in United Kingdom as of 2020.

New Street Additions (2006–2020)

SNDi value
3.07
Rank in United Kingdom
15th of 143
Rank in England
12th of 124

Entire Network (Aggregate)

SNDi value
3.55
Rank in United Kingdom
68th of 143
Rank in England
60th of 124

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

What about similarly populated cities?

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
YorkHataDanjiangkou

In new street additions, York and Hata both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Danjiangkou fluctuated in its street-construction patterns. For the full network, York grew more disconnected from 1975 through 1991-2005, then improved, while Hata grew more disconnected from 1975 through 1976-1990, then improved and Danjiangkou became progressively more disconnected. York and Danjiangkou have been converging in their street-network character since 1975.