Hebi in context: Street-network sprawl trends

Hebi in context

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
HebiHenan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Hebi plotted against Henan and China. While Henan and China both followed a zig-zag trend with an overall increase, Hebi's new street additions followed a zig-zag trend with an overall decrease. Most recently, Hebi's incremental SNDi rose from 2.11 to 2.43 between 1991-2005 and 2006-2020. In terms of the aggregate network, Hebi ranked 61st out of 129 cities in Henan and 489th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.43
Rank in China
470th of 1843
Rank in Henan
65th of 129

Entire Network (Aggregate)

SNDi value
2.37
Rank in China
489th of 1843
Rank in Henan
61st of 129

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
HebiDes MoinesDatia

In new street additions, Hebi fluctuated in its street-construction patterns, while Des Moines built increasingly disconnected streets over time and Datia fluctuated in its street-construction patterns. For the full network, Hebi fluctuated in connectivity, while Des Moines became progressively more disconnected and Datia became progressively more connected. Hebi and Des Moines have been converging in their street-network character since 1975.