Gunsan-si in context: Street-network sprawl trends

Gunsan-si in context

1.21.82.43<19751976–19901991–20052006–2020SNDi of street additions
1.21.82.43<19751976–19901991–20052006–2020SNDi of entire street network
Gunsan-siJeollabuk-do (Region)South Korea (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Gunsan-si plotted against Jeollabuk-do and South Korea. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Gunsan-si's incremental SNDi rose from 1.46 to 1.62 between 1991-2005 and 2006-2020. In terms of the aggregate network, Gunsan-si ranked 1st out of 3 cities in Jeollabuk-do and 2nd out of 49 in South Korea as of 2020.

New Street Additions (2006–2020)

SNDi value
1.62
Rank in South Korea
1st of 49
Rank in Jeollabuk-do
1st of 3

Entire Network (Aggregate)

SNDi value
1.38
Rank in South Korea
2nd of 49
Rank in Jeollabuk-do
1st of 3

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

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
Gunsan-siKulimMuktagacha

In new street additions, Gunsan-si and Kulim both fluctuated in its street-construction patterns, while Muktagacha built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend. Gunsan-si and Muktagacha have been growing further apart in their street-network character since 1975.