Mianzhu in context: Street-network sprawl trends

Mianzhu 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
MianzhuSichuan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Mianzhu plotted against Sichuan and China. The SNDi of new construction in Mianzhu peaked in 1976-1990, compared to Sichuan which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Mianzhu's incremental SNDi fell from 2.28 to 2.14 between 1991-2005 and 2006-2020. In terms of the aggregate network, Mianzhu ranked 12th out of 98 cities in Sichuan and 319th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.14
Rank in China
311th of 1843
Rank in Sichuan
9th of 98

Entire Network (Aggregate)

SNDi value
2.16
Rank in China
319th of 1843
Rank in Sichuan
12th of 98

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

What about similarly populated cities?

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
MianzhuOmu AranSergiyev Posad

In new street additions, Mianzhu built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Omu Aran built increasingly disconnected streets from 1975 through 1991-2005, then improved and Sergiyev Posad built increasingly disconnected streets over time. Looking at the full network, Omu Aran and Sergiyev Posad both became progressively more disconnected, while Mianzhu grew more disconnected from 1975 through 1991-2005, then improved. Mianzhu and Omu Aran have been growing further apart in their street-network character since 1975.