Dongducheon in context: Street-network sprawl trends

Dongducheon 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
DongducheonGyeonggi-do (Region)South Korea (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Dongducheon 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, Dongducheon's incremental SNDi rose from 2.35 to 3.55 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dongducheon ranked 6th out of 10 cities in Gyeonggi-do and 41st out of 49 in South Korea as of 2020.

New Street Additions (2006–2020)

SNDi value
3.55
Rank in South Korea
40th of 49
Rank in Gyeonggi-do
7th of 10

Entire Network (Aggregate)

SNDi value
2.56
Rank in South Korea
41st of 49
Rank in Gyeonggi-do
6th of 10

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

What about similarly populated cities?

1.82.73.64.55.4<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.55.4<19751976–19901991–20052006–2020SNDi of entire street network
DongducheonLqliaaNew Hope

In new street additions, Dongducheon and New Hope both fluctuated in its street-construction patterns, while Lqliaa built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Dongducheon fluctuated in connectivity, while Lqliaa grew more disconnected from 1975 through 1991-2005, then improved and New Hope became progressively more disconnected. Dongducheon and Lqliaa have been growing further apart in their street-network character since 1975.