Wolha-dong in context: Street-network sprawl trends

Wolha-dong in context

1.82.433.6<19751976–19901991–20052006–2020SNDi of street additions
1.82.433.6<19751976–19901991–20052006–2020SNDi of entire street network
Wolha-dongJeollanam-do (Region)South Korea (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Wolha-dong plotted against Jeollanam-do and South Korea. The SNDi of new construction in Wolha-dong peaked in 1976-1990, compared to Jeollanam-do which followed a zig-zag trend with an overall increase and South Korea which followed a zig-zag trend with an overall increase. Most recently, Wolha-dong's incremental SNDi fell from 3.44 to 2.8 between 1991-2005 and 2006-2020. In terms of the aggregate network, Wolha-dong ranked 3rd out of 4 cities in Jeollanam-do and 45th out of 49 in South Korea as of 2020.

New Street Additions (2006–2020)

SNDi value
2.8
Rank in South Korea
27th of 49
Rank in Jeollanam-do
3rd of 4

Entire Network (Aggregate)

SNDi value
3.09
Rank in South Korea
45th of 49
Rank in Jeollanam-do
3rd of 4

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
Wolha-dongKhuntiMonastir

In new street additions, Wolha-dong built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Khunti built increasingly disconnected streets over time and Monastir fluctuated in its street-construction patterns. Looking at the full network, Khunti and Monastir both became progressively more disconnected, while Wolha-dong grew more disconnected from 1975 through 1991-2005, then improved. Notably, Wolha-dong had a more sprawly network than Khunti in 1975 but the two have since reversed their relative ranking.