Beppu in context: Street-network sprawl trends

Beppu in context

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
BeppuOita (Region)Japan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Beppu plotted against Oita and Japan. The SNDi of new construction in Beppu rose steadily, compared to Oita which followed a zig-zag trend with an overall increase and Japan which followed a zig-zag trend with an overall increase. Most recently, Beppu's incremental SNDi rose from 3.68 to 4.3 between 1991-2005 and 2006-2020. In terms of the aggregate network, Beppu ranked 2nd out of 2 cities in Oita and 108th out of 135 in Japan as of 2020.

New Street Additions (2006–2020)

SNDi value
4.3
Rank in Japan
122nd of 135
Rank in Oita
2nd of 2

Entire Network (Aggregate)

SNDi value
2.78
Rank in Japan
108th of 135
Rank in Oita
2nd of 2

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

What about similarly populated cities?

2.12.83.54.24.9<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.24.9<19751976–19901991–20052006–2020SNDi of entire street network
BeppuBloraAnnecy

While Blora and Annecy both fluctuated in its street-construction patterns, Beppu built increasingly disconnected streets over time in new street additions. For the full street network, though, all three cities follow the same trend. Beppu and Annecy have been growing further apart in their street-network character since 1975.