Kochi in context: Street-network sprawl trends

Kochi in context

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
KochiJapan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Kochi plotted against Japan. Both Kochi and Japan follow the same trend. Most recently, Kochi's incremental SNDi rose from 3.76 to 4.41 between 1991-2005 and 2006-2020. In terms of the aggregate network, Kochi ranked 115th out of 135 in Japan as of 2020.

New Street Additions (2006–2020)

SNDi value
4.41
Rank in Japan
125th of 135

Entire Network (Aggregate)

SNDi value
2.93
Rank in Japan
115th of 135

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

What about similarly populated cities?

3456<19751976–19901991–20052006–2020SNDi of street additions
3456<19751976–19901991–20052006–2020SNDi of entire street network
KochiCape CoastTagum

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