Yinan in context: Street-network sprawl trends

Yinan 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
YinanShandong (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Yinan plotted against Shandong and China. The SNDi of new construction in Yinan rose steadily, compared to Shandong which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Yinan's incremental SNDi rose from 1.99 to 2.69 between 1991-2005 and 2006-2020. In terms of the aggregate network, Yinan ranked 57th out of 124 cities in Shandong and 359th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.69
Rank in China
646th of 1843
Rank in Shandong
68th of 124

Entire Network (Aggregate)

SNDi value
2.2
Rank in China
359th of 1843
Rank in Shandong
57th of 124

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

What about similarly populated cities?

369<19751976–19901991–20052006–2020SNDi of street additions
369<19751976–19901991–20052006–2020SNDi of entire street network
YinanAbhaRanaghat

In new street additions, Yinan and Abha both built increasingly disconnected streets over time, while Ranaghat built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Yinan and Abha both became progressively more disconnected, while Ranaghat grew more disconnected from 1975 through 1991-2005, then improved. Yinan and Abha have been converging in their street-network character since 1975.