Hakodate in context: Street-network sprawl trends

Hakodate in context

1.82.12.42.7<19751976–19901991–20052006–2020SNDi of street additions
1.82.12.42.7<19751976–19901991–20052006–2020SNDi of entire street network
HakodateHokkaido (Region)Japan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Hakodate plotted against Hokkaido and Japan. The SNDi of new construction in Hakodate peaked in 1976-1990, compared to Hokkaido which followed a zig-zag trend with an overall increase and Japan which followed a zig-zag trend with an overall increase. Most recently, Hakodate's incremental SNDi fell from 2.34 to 2.12 between 1991-2005 and 2006-2020. In terms of the aggregate network, Hakodate ranked 7th out of 10 cities in Hokkaido and 22nd out of 135 in Japan as of 2020.

New Street Additions (2006–2020)

SNDi value
2.12
Rank in Japan
32nd of 135
Rank in Hokkaido
7th of 10

Entire Network (Aggregate)

SNDi value
1.78
Rank in Japan
22nd of 135
Rank in Hokkaido
7th of 10

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
HakodateBolingbrookMit Habib

In new street additions, Hakodate built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Bolingbrook built increasingly disconnected streets from 1975 through 1991-2005, then improved and Mit Habib built increasingly disconnected streets over time. For the full network, Hakodate and Mit Habib both became progressively more disconnected, while Bolingbrook grew more disconnected from 1975 through 1991-2005, then improved. Hakodate and Mit Habib have been growing further apart in their street-network character since 1975.