Xinye in context: Street-network sprawl trends

Xinye in context

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
XinyeHenan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Xinye plotted against Henan and China. The SNDi of new construction in Xinye was at its lowest 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, Xinye's incremental SNDi rose from 1.45 to 2.06 between 1991-2005 and 2006-2020. In terms of the aggregate network, Xinye ranked 14th out of 129 cities in Henan and 94th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.06
Rank in China
276th of 1843
Rank in Henan
33rd of 129

Entire Network (Aggregate)

SNDi value
1.69
Rank in China
94th of 1843
Rank in Henan
14th of 129

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

What about similarly populated cities?

1.21.82.4<19751976–19901991–20052006–2020SNDi of street additions
1.21.82.4<19751976–19901991–20052006–2020SNDi of entire street network
XinyePingyangSertaozinho

While Pingyang and Sertãozinho both fluctuated in its street-construction patterns, Xinye built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns in new street additions. Looking at the full network, Pingyang and Sertãozinho both became progressively more disconnected, while Xinye became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Notably, Xinye had a more sprawly network than Pingyang in 1975 but the two have since reversed their relative ranking.