Yanggao in context: Street-network sprawl trends

Yanggao 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
YanggaoShanxi (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Yanggao plotted against Shanxi and China. The SNDi of new construction in Yanggao was at its lowest in 1991-2005, 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, Yanggao's incremental SNDi rose from 2.09 to 2.23 between 1991-2005 and 2006-2020. In terms of the aggregate network, Yanggao ranked 29th out of 80 cities in Shanxi and 801st out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.23
Rank in China
356th of 1843
Rank in Shanxi
18th of 80

Entire Network (Aggregate)

SNDi value
2.75
Rank in China
801st of 1843
Rank in Shanxi
29th of 80

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
YanggaoDekemhareLingpu

In new street additions, Yanggao built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, while Dekemhare built increasingly disconnected streets from 1975 through 1991-2005, then improved and Lingpu built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Yanggao grew more disconnected from 1975 through 1976-1990, then improved, while Dekemhare became progressively more disconnected and Lingpu grew more disconnected from 1975 through 1991-2005, then improved. Yanggao and Dekemhare have been converging in their street-network character since 1975.