Tai'an in context: Street-network sprawl trends

Tai'an in context

33.544.5<19751976–19901991–20052006–2020SNDi of street additions
33.544.5<19751976–19901991–20052006–2020SNDi of entire street network
Tai'anShandong (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Tai'an plotted against Shandong and China. The SNDi of new construction in Tai'an was at its lowest in 1991-2005, compared to Shandong which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Tai'an's incremental SNDi rose from 2.96 to 3.1 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tai'an ranked 97th out of 124 cities in Shandong and 1069th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.1
Rank in China
945th of 1843
Rank in Shandong
87th of 124

Entire Network (Aggregate)

SNDi value
3.05
Rank in China
1069th of 1843
Rank in Shandong
97th of 124

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
Tai'anPontianakHermosillo

While Pontianak and Hermosillo both fluctuated in its street-construction patterns, Tai'an built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns in new street additions. For the full network, Tai'an became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards, while Pontianak fluctuated in connectivity and Hermosillo became progressively more disconnected. Tai'an and Hermosillo have been converging in their street-network character since 1975.