Shikokuchuo in context: Street-network sprawl trends

Shikokuchuo in context

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
ShikokuchuoEhime (Region)Japan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Shikokuchuo plotted against Ehime and Japan. The SNDi of new construction in Shikokuchuo rose steadily, compared to Ehime which followed a zig-zag trend with an overall increase and Japan which followed a zig-zag trend with an overall increase. Most recently, Shikokuchuo's incremental SNDi rose from 2.97 to 4.78 between 1991-2005 and 2006-2020. In terms of the aggregate network, Shikokuchuo ranked 1st out of 4 cities in Ehime and 88th out of 135 in Japan as of 2020.

New Street Additions (2006–2020)

SNDi value
4.78
Rank in Japan
132nd of 135
Rank in Ehime
4th of 4

Entire Network (Aggregate)

SNDi value
2.54
Rank in Japan
88th of 135
Rank in Ehime
1st of 4

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

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
ShikokuchuoMantecaHillat Ash Shekh Mustafa al Fadni

In new street additions, Shikokuchuo built increasingly disconnected streets over time, while Manteca built increasingly disconnected streets from 1975 through 1991-2005, then improved and Hillat Ash Shekh Mustafa al Fadni fluctuated in its street-construction patterns. For the full network, Shikokuchuo and Manteca both became progressively more disconnected, while Hillat Ash Shekh Mustafa al Fadni fluctuated in connectivity.