Ninghe in context: Street-network sprawl trends

Ninghe 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
NingheTianjin (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ninghe plotted against Tianjin and China. The SNDi of new construction in Ninghe 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, Ninghe's incremental SNDi fell from 3.8 to 3.79 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ninghe ranked 7th out of 16 cities in Tianjin and 1060th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.79
Rank in China
1307th of 1843
Rank in Tianjin
13th of 16

Entire Network (Aggregate)

SNDi value
3.04
Rank in China
1060th of 1843
Rank in Tianjin
7th 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
NingheVillukuriAbepura

In new street additions, Ninghe built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Villukuri built increasingly disconnected streets over time and Abepura fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend.