Hitachi in context: Street-network sprawl trends

Hitachi in context

22.42.83.2<19751976–19901991–20052006–2020SNDi of street additions
22.42.83.2<19751976–19901991–20052006–2020SNDi of entire street network
HitachiIbaraki (Region)Japan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Hitachi plotted against Ibaraki and Japan. While Ibaraki and Japan both followed a zig-zag trend with an overall increase, Hitachi's new street additions followed a zig-zag trend with an overall increase. Most recently, Hitachi's incremental SNDi rose from 3.02 to 3.22 between 1991-2005 and 2006-2020. In terms of the aggregate network, Hitachi ranked 6th out of 7 cities in Ibaraki and 74th out of 135 in Japan as of 2020.

New Street Additions (2006–2020)

SNDi value
3.22
Rank in Japan
95th of 135
Rank in Ibaraki
7th of 7

Entire Network (Aggregate)

SNDi value
2.42
Rank in Japan
74th of 135
Rank in Ibaraki
6th of 7

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
HitachiXinzhou DistrictNalbari

In new street additions, Hitachi and Xinzhou District both fluctuated in its street-construction patterns, while Nalbari built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Hitachi and Nalbari both became progressively more disconnected, while Xinzhou District fluctuated in connectivity. Hitachi and Xinzhou District have been converging in their street-network character since 1975.