Jangdeung-ri in context: Street-network sprawl trends

Jangdeung-ri in context

1.522.533.5<19751976–19901991–20052006–2020SNDi of street additions
1.522.533.5<19751976–19901991–20052006–2020SNDi of entire street network
Jangdeung-riGyeonggi-do (Region)South Korea (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Jangdeung-ri plotted against Gyeonggi-do and South Korea. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Jangdeung-ri's incremental SNDi rose from 2.46 to 2.75 between 1991-2005 and 2006-2020. In terms of the aggregate network, Jangdeung-ri ranked 4th out of 10 cities in Gyeonggi-do and 37th out of 49 in South Korea as of 2020.

New Street Additions (2006–2020)

SNDi value
2.75
Rank in South Korea
25th of 49
Rank in Gyeonggi-do
3rd of 10

Entire Network (Aggregate)

SNDi value
2.36
Rank in South Korea
37th of 49
Rank in Gyeonggi-do
4th of 10

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
Jangdeung-riPlanaltinaSibolga

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