Longyao in context: Street-network sprawl trends

Longyao in context

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
LongyaoHebei (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Longyao plotted against Hebei and China. The SNDi of new construction in Longyao peaked 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, Longyao's incremental SNDi fell from 2.64 to 1.89 between 1991-2005 and 2006-2020. In terms of the aggregate network, Longyao ranked 19th out of 120 cities in Hebei and 406th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
1.89
Rank in China
197th of 1843
Rank in Hebei
7th of 120

Entire Network (Aggregate)

SNDi value
2.26
Rank in China
406th of 1843
Rank in Hebei
19th of 120

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
LongyaoShangpanUsti nad Labem

In new street additions, Longyao built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Shangpan built increasingly disconnected streets from 1975 through 1991-2005, then improved and Ústí nad Labem fluctuated in its street-construction patterns. Looking at the full network, Shangpan and Ústí nad Labem both became progressively more disconnected, while Longyao grew more disconnected from 1975 through 1991-2005, then improved. Longyao and Shangpan have been growing further apart in their street-network character since 1975.