Jizhou in context: Street-network sprawl trends

Jizhou in context

2.433.64.2<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.2<19751976–19901991–20052006–2020SNDi of entire street network
JizhouTianjin (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Jizhou plotted against Tianjin and China. The SNDi of new construction in Jizhou peaked in 1976-1990, compared to Tianjin which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Jizhou's incremental SNDi fell from 3.49 to 2.55 between 1991-2005 and 2006-2020. In terms of the aggregate network, Jizhou ranked 2nd out of 16 cities in Tianjin and 850th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.55
Rank in China
552nd of 1843
Rank in Tianjin
1st of 16

Entire Network (Aggregate)

SNDi value
2.8
Rank in China
850th of 1843
Rank in Tianjin
2nd of 16

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
JizhouTorunNoapara

In new street additions, Jizhou built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Toruń built increasingly disconnected streets over time and Noapara fluctuated in its street-construction patterns. For the full network, Jizhou grew more disconnected from 1975 through 1991-2005, then improved, while Toruń became progressively more disconnected and Noapara fluctuated in connectivity.