Xuedian in context: Street-network sprawl trends

Xuedian in context

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
XuedianHenan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Xuedian plotted against Henan and China. The SNDi of new construction in Xuedian peaked in 1976-1990, compared to Henan which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Xuedian's incremental SNDi fell from 3.97 to 2.65 between 1991-2005 and 2006-2020. In terms of the aggregate network, Xuedian ranked 119th out of 129 cities in Henan and 1323rd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.65
Rank in China
628th of 1843
Rank in Henan
76th of 129

Entire Network (Aggregate)

SNDi value
3.43
Rank in China
1323rd of 1843
Rank in Henan
119th of 129

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
XuedianTelemaco BorbaPir jo Goth

In new street additions, Xuedian built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Telêmaco Borba built increasingly disconnected streets over time and Pir jo Goth built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Xuedian grew more disconnected from 1975 through 1976-1990, then improved, while Telêmaco Borba became progressively more disconnected and Pir jo Goth became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Xuedian and Telêmaco Borba have been converging in their street-network character since 1975.