Shibata in context: Street-network sprawl trends

Shibata in context

22.533.5<19751976–19901991–20052006–2020SNDi of street additions
22.533.5<19751976–19901991–20052006–2020SNDi of entire street network
ShibataMiyagi (Region)Japan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Shibata plotted against Miyagi and Japan. While Miyagi and Japan both followed a zig-zag trend with an overall increase, Shibata's new street additions followed a zig-zag trend with an overall increase. Most recently, Shibata's incremental SNDi rose from 2.23 to 2.45 between 1991-2005 and 2006-2020. In terms of the aggregate network, Shibata ranked 1st out of 4 cities in Miyagi and 54th out of 135 in Japan as of 2020.

New Street Additions (2006–2020)

SNDi value
2.45
Rank in Japan
56th of 135
Rank in Miyagi
2nd of 4

Entire Network (Aggregate)

SNDi value
2.15
Rank in Japan
54th of 135
Rank in Miyagi
1st of 4

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

What about similarly populated cities?

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
ShibataLongzhouNovy Urengoy

In new street additions, Shibata fluctuated in its street-construction patterns, while Longzhou built increasingly disconnected streets from 1975 through 1991-2005, then improved and Novy Urengoy fluctuated in its street-construction patterns. For the full network, Shibata became progressively more disconnected, while Longzhou grew more disconnected from 1975 through 1991-2005, then improved and Novy Urengoy became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Shibata and Longzhou have been growing further apart in their street-network character since 1975.