Hereford in context: Street-network sprawl trends

Hereford in context

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

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Hereford plotted against England and United Kingdom. The SNDi of new construction in Hereford followed a zig-zag trend with an overall increase, compared to England which peaked in 1991-2005 and United Kingdom which peaked in 1991-2005. Most recently, Hereford's incremental SNDi rose from 4.29 to 4.39 between 1991-2005 and 2006-2020. In terms of the aggregate network, Hereford ranked 46th out of 124 cities in England and 53rd out of 143 in United Kingdom as of 2020.

New Street Additions (2006–2020)

SNDi value
4.39
Rank in United Kingdom
84th of 143
Rank in England
76th of 124

Entire Network (Aggregate)

SNDi value
3.43
Rank in United Kingdom
53rd of 143
Rank in England
46th of 124

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
HerefordTianyangJingxian

In new street additions, Hereford fluctuated in its street-construction patterns, while Tianyang built increasingly disconnected streets from 1975 through 1976-1990, then improved and Jingxian built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Hereford became progressively more disconnected, while Tianyang grew more disconnected from 1975 through 1976-1990, then improved and Jingxian became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Notably, Hereford had a more connected network than Tianyang in 1975 but the two have since reversed their relative ranking.