Đông Anh in context: Street-network sprawl trends

Dong Anh in context

4.24.85.46<19751976–19901991–20052006–2020SNDi of street additions
4.24.85.46<19751976–19901991–20052006–2020SNDi of entire street network
Dong AnhHa Noi (Region)Vietnam (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Đông Anh plotted against Hà Nội and Vietnam. The SNDi of new construction in Đông Anh followed a zig-zag trend with an overall decrease, compared to Hà Nội which peaked in 1991-2005 and Vietnam which rose steadily. Most recently, Đông Anh's incremental SNDi fell from 4.21 to 3.95 between 1991-2005 and 2006-2020. In terms of the aggregate network, Đông Anh ranked 3rd out of 9 cities in Hà Nội and 49th out of 126 in Vietnam as of 2020.

New Street Additions (2006–2020)

SNDi value
3.95
Rank in Vietnam
40th of 126
Rank in Hà Nội
4th of 9

Entire Network (Aggregate)

SNDi value
4.09
Rank in Vietnam
49th of 126
Rank in Hà Nội
3rd of 9

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
Dong AnhPelotasSivakasi

While Pelotas and Sivakasi both built increasingly disconnected streets over time, Đông Anh fluctuated in its street-construction patterns in new street additions. Looking at the full network, Pelotas and Sivakasi both became progressively more disconnected, while Đông Anh fluctuated in connectivity. Đông Anh and Pelotas have been converging in their street-network character since 1975.