Numazu in context: Street-network sprawl trends

Numazu in context

2.433.6<19751976–19901991–20052006–2020SNDi of street additions
2.433.6<19751976–19901991–20052006–2020SNDi of entire street network
NumazuShizuoka (Region)Japan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Numazu plotted against Shizuoka and Japan. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Numazu's incremental SNDi rose from 3.68 to 3.84 between 1991-2005 and 2006-2020. In terms of the aggregate network, Numazu ranked 4th out of 5 cities in Shizuoka and 111th out of 135 in Japan as of 2020.

New Street Additions (2006–2020)

SNDi value
3.84
Rank in Japan
115th of 135
Rank in Shizuoka
4th of 5

Entire Network (Aggregate)

SNDi value
2.84
Rank in Japan
111th of 135
Rank in Shizuoka
4th of 5

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

What about similarly populated cities?

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
NumazuTulaGdansk

While Tula and Gdansk both built increasingly disconnected streets over time, Numazu fluctuated in its street-construction patterns in new street additions. For the full street network, though, all three cities follow the same trend.