Jiayuguan in context: Street-network sprawl trends

Jiayuguan in context

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
JiayuguanGansu (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Jiayuguan plotted against Gansu and China. The SNDi of new construction in Jiayuguan was at its lowest in 1976-1990, compared to Gansu which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Jiayuguan's incremental SNDi rose from 2.23 to 3.04 between 1991-2005 and 2006-2020. In terms of the aggregate network, Jiayuguan ranked 7th out of 29 cities in Gansu and 1104th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.04
Rank in China
906th of 1843
Rank in Gansu
7th of 29

Entire Network (Aggregate)

SNDi value
3.1
Rank in China
1104th of 1843
Rank in Gansu
7th of 29

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
JiayuguanConghuaNorthampton

In new street additions, Jiayuguan built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Conghua built increasingly disconnected streets over time and Northampton built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Jiayuguan became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards, while Conghua became progressively more disconnected and Northampton grew more disconnected from 1975 through 1991-2005, then improved. Notably, Jiayuguan had a more sprawly network than Conghua in 1975 but the two have since reversed their relative ranking.