Shanyin in context: Street-network sprawl trends

Shanyin 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
ShanyinShanxi (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Shanyin plotted against Shanxi and China. The SNDi of new construction in Shanyin 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, Shanyin's incremental SNDi fell from 3.61 to 2.41 between 1991-2005 and 2006-2020. In terms of the aggregate network, Shanyin ranked 65th out of 80 cities in Shanxi and 1465th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.41
Rank in China
458th of 1843
Rank in Shanxi
24th of 80

Entire Network (Aggregate)

SNDi value
3.7
Rank in China
1465th of 1843
Rank in Shanxi
65th of 80

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

What about similarly populated cities?

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
ShanyinAnpingChambery

In new street additions, Shanyin and Chambéry both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Anping fluctuated in its street-construction patterns. Looking at the full network, Anping and Chambéry both became progressively more disconnected, while Shanyin grew more disconnected from 1975 through 1976-1990, then improved. Shanyin and Chambéry have been converging in their street-network character since 1975.