Jintang in context: Street-network sprawl trends

Jintang in context

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
JintangSichuan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Jintang plotted against Sichuan and China. The SNDi of new construction in Jintang peaked in 1976-1990, compared to Sichuan which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Jintang's incremental SNDi fell from 3.14 to 3.04 between 1991-2005 and 2006-2020. In terms of the aggregate network, Jintang ranked 51st out of 98 cities in Sichuan and 1084th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.04
Rank in China
910th of 1843
Rank in Sichuan
43rd of 98

Entire Network (Aggregate)

SNDi value
3.07
Rank in China
1084th of 1843
Rank in Sichuan
51st of 98

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

What about similarly populated cities?

234567<19751976–19901991–20052006–2020SNDi of street additions
234567<19751976–19901991–20052006–2020SNDi of entire street network
JintangLalamusaZonguldak

In new street additions, Jintang built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Lalamusa built increasingly disconnected streets from 1975 through 1991-2005, then improved and Zonguldak fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend. Jintang and Lalamusa have been growing further apart in their street-network character since 1975.