Gamagori in context: Street-network sprawl trends

Gamagori in context

1.622.42.8<19751976–19901991–20052006–2020SNDi of street additions
1.622.42.8<19751976–19901991–20052006–2020SNDi of entire street network
GamagoriAichi (Region)Japan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Gamagori plotted against Aichi and Japan. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Gamagori's incremental SNDi rose from 1.99 to 2.59 between 1991-2005 and 2006-2020. In terms of the aggregate network, Gamagori ranked 1st out of 3 cities in Aichi and 7th out of 135 in Japan as of 2020.

New Street Additions (2006–2020)

SNDi value
2.59
Rank in Japan
65th of 135
Rank in Aichi
3rd of 3

Entire Network (Aggregate)

SNDi value
1.54
Rank in Japan
7th of 135
Rank in Aichi
1st of 3

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
GamagoriMaronderaShrewsbury

In new street additions, Gamagori fluctuated in its street-construction patterns, while Marondera built increasingly disconnected streets over time and Shrewsbury built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend.