Santai in context: Street-network sprawl trends

Santai 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
SantaiHebei (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Santai plotted against Hebei and China. The SNDi of new construction in Santai was at its lowest in 1976-1990, 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, Santai's incremental SNDi rose from 2.84 to 4.07 between 1991-2005 and 2006-2020. In terms of the aggregate network, Santai ranked 70th out of 120 cities in Hebei as of 2020.

New Street Additions (2006–2020)

SNDi value
4.07
Rank in Hebei
91st of 120

Entire Network (Aggregate)

SNDi value
3.02
Rank in Hebei
70th of 120

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

What about similarly populated cities?

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
SantaiTongjiangPatahi

While Tongjiang and Patahi both fluctuated in its street-construction patterns, Santai built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns in new street additions. For the full network, Santai became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards, while Tongjiang became progressively more disconnected and Patahi grew more disconnected from 1975 through 1976-1990, then improved. Notably, Santai had a more sprawly network than Patahi in 1975 but the two have since reversed their relative ranking.