Higashimatsuyama in context: Street-network sprawl trends

Higashimatsuyama in context

2.12.42.7<19751976–19901991–20052006–2020SNDi of street additions
2.12.42.7<19751976–19901991–20052006–2020SNDi of entire street network
HigashimatsuyamaSaitama (Region)Japan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Higashimatsuyama plotted against Saitama and Japan. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Higashimatsuyama's incremental SNDi rose from 1.91 to 2.19 between 1991-2005 and 2006-2020. In terms of the aggregate network, Higashimatsuyama ranked 3rd out of 5 cities in Saitama and 35th out of 135 in Japan as of 2020.

New Street Additions (2006–2020)

SNDi value
2.19
Rank in Japan
42nd of 135
Rank in Saitama
3rd of 5

Entire Network (Aggregate)

SNDi value
1.97
Rank in Japan
35th of 135
Rank in Saitama
3rd of 5

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

What about similarly populated cities?

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
HigashimatsuyamaAd DawadimiDomeez

In new street additions, Higashimatsuyama fluctuated in its street-construction patterns, while Ad Dawadimi built increasingly disconnected streets over time and Domeez built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Higashimatsuyama fluctuated in connectivity, while Ad Dawadimi became progressively more disconnected and Domeez grew more disconnected from 1975 through 1991-2005, then improved. Higashimatsuyama and Ad Dawadimi have been growing further apart in their street-network character since 1975.