Qihe in context: Street-network sprawl trends

Qihe in context

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
QiheShandong (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Qihe plotted against Shandong and China. The SNDi of new construction in Qihe peaked in 1976-1990, compared to Shandong which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Qihe's incremental SNDi fell from 2.15 to 2.08 between 1991-2005 and 2006-2020. In terms of the aggregate network, Qihe ranked 44th out of 124 cities in Shandong and 252nd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.08
Rank in China
285th of 1843
Rank in Shandong
36th of 124

Entire Network (Aggregate)

SNDi value
2.04
Rank in China
252nd of 1843
Rank in Shandong
44th of 124

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

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
QihePyeongtaekNoumea

In new street additions, Qihe and Nouméa both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Pyeongtaek fluctuated in street-construction patterns. For the full network, Qihe and Pyeongtaek both became progressively more disconnected, while Nouméa grew more disconnected from 1975 through 1991-2005, then improved. Qihe and Pyeongtaek have been growing further apart in their street-network character since 1975.