Asahikawa in context: Street-network sprawl trends

Asahikawa in context

1.622.42.8<19751976–19901991–20052006–2020SNDi of street additions
1.622.42.8<19751976–19901991–20052006–2020SNDi of entire street network
AsahikawaHokkaido (Region)Japan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Asahikawa plotted against Hokkaido and Japan. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Asahikawa's incremental SNDi rose from 1.71 to 1.85 between 1991-2005 and 2006-2020. In terms of the aggregate network, Asahikawa ranked 3rd out of 10 cities in Hokkaido and 8th out of 135 in Japan as of 2020.

New Street Additions (2006–2020)

SNDi value
1.85
Rank in Japan
13th of 135
Rank in Hokkaido
3rd of 10

Entire Network (Aggregate)

SNDi value
1.57
Rank in Japan
8th of 135
Rank in Hokkaido
3rd of 10

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

What about similarly populated cities?

123456<19751976–19901991–20052006–2020SNDi of street additions
123456<19751976–19901991–20052006–2020SNDi of entire street network
AsahikawaSanto Domingo de los TsachilasGonaives

In new street additions, Asahikawa and Santo Domingo de los Tsachilas both fluctuated in its street-construction patterns, while Gonaïves built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend. Asahikawa and Santo Domingo de los Tsachilas have been growing further apart in their street-network character since 1975.