Jincheng in context: Street-network sprawl trends

Jincheng 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
JinchengShanxi (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Jincheng plotted against Shanxi and China. The SNDi of new construction in Jincheng peaked in 1976-1990, compared to Shanxi which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Jincheng's incremental SNDi fell from 2.62 to 2.45 between 1991-2005 and 2006-2020. In terms of the aggregate network, Jincheng ranked 23rd out of 80 cities in Shanxi as of 2020.

New Street Additions (2006–2020)

SNDi value
2.45
Rank in Shanxi
27th of 80

Entire Network (Aggregate)

SNDi value
2.46
Rank in Shanxi
23rd of 80

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

What about similarly populated cities?

1.82.433.6<19751976–19901991–20052006–2020SNDi of street additions
1.82.433.6<19751976–19901991–20052006–2020SNDi of entire street network
JinchengHanoverWuppertal

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