Qian'an in context: Street-network sprawl trends

Qian'an 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
Qian'anHebei (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Qian'an plotted against Hebei and China. The SNDi of new construction in Qian'an rose steadily, compared to Hebei which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Qian'an's incremental SNDi rose from 2.47 to 2.7 between 1991-2005 and 2006-2020. In terms of the aggregate network, Qian'an ranked 25th out of 120 cities in Hebei as of 2020.

New Street Additions (2006–2020)

SNDi value
2.7
Rank in Hebei
36th of 120

Entire Network (Aggregate)

SNDi value
2.36
Rank in Hebei
25th of 120

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

What about similarly populated cities?

02468<19751976–19901991–20052006–2020SNDi of street additions
02468<19751976–19901991–20052006–2020SNDi of entire street network
Qian'anModanganjLaharpur

Qian'an, Modanganj, and Laharpur all built increasingly disconnected streets over time in new street construction. The same pattern holds for the full street network. Notably, Qian'an had a more sprawly network than Modanganj in 1975 but the two have since reversed their relative ranking.