Sincheon-dong in context: Street-network sprawl trends

Sincheon-dong 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
Sincheon-dongUlsan (Region)South Korea (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Sincheon-dong plotted against Ulsan and South Korea. The SNDi of new construction in Sincheon-dong peaked in 1976-1990, compared to Ulsan 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, Sincheon-dong's incremental SNDi fell from 2.12 to 2.11 between 1991-2005 and 2006-2020. In terms of the aggregate network, Sincheon-dong ranked 2nd out of 2 cities in Ulsan and 31st out of 49 in South Korea as of 2020.

New Street Additions (2006–2020)

SNDi value
2.11
Rank in South Korea
10th of 49
Rank in Ulsan
1st of 2

Entire Network (Aggregate)

SNDi value
2.07
Rank in South Korea
31st of 49
Rank in Ulsan
2nd of 2

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
Sincheon-dongGutinAjab Shir

In new street additions, Sincheon-dong and Ajab Shir both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Gutin built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Sincheon-dong became progressively more disconnected, while Gutin became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards and Ajab Shir grew more disconnected from 1975 through 1976-1990, then improved. Sincheon-dong and Gutin have been converging in their street-network character since 1975.