Tokushima in context: Street-network sprawl trends

Tokushima in context

22.533.54<19751976–19901991–20052006–2020SNDi of street additions
22.533.54<19751976–19901991–20052006–2020SNDi of entire street network
TokushimaJapan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Tokushima plotted against Japan. Both Tokushima and Japan follow the same trend. Most recently, Tokushima's incremental SNDi rose from 3.38 to 3.82 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tokushima ranked 126th out of 135 in Japan as of 2020.

New Street Additions (2006–2020)

SNDi value
3.82
Rank in Japan
114th of 135

Entire Network (Aggregate)

SNDi value
3.24
Rank in Japan
126th of 135

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

What about similarly populated cities?

234567<19751976–19901991–20052006–2020SNDi of street additions
234567<19751976–19901991–20052006–2020SNDi of entire street network
TokushimaManikchakKorhogo

In new street additions, Tokushima and Korhogo both fluctuated in its street-construction patterns, while Manikchak built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Tokushima and Korhogo both became progressively more disconnected, while Manikchak became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Tokushima and Korhogo have been converging in their street-network character since 1975.