Hạ Long in context: Street-network sprawl trends

Ha Long in context

3.244.85.6<19751976–19901991–20052006–2020SNDi of street additions
3.244.85.6<19751976–19901991–20052006–2020SNDi of entire street network
Ha LongQuang Ninh (Region)Vietnam (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Hạ Long plotted against Quảng Ninh and Vietnam. The SNDi of new construction in Hạ Long peaked in 1976-1990, compared to Quảng Ninh which rose steadily and Vietnam which rose steadily. Most recently, Hạ Long's incremental SNDi fell from 4.66 to 3.32 between 1991-2005 and 2006-2020. In terms of the aggregate network, Hạ Long ranked 2nd out of 5 cities in Quảng Ninh and 36th out of 126 in Vietnam as of 2020.

New Street Additions (2006–2020)

SNDi value
3.32
Rank in Vietnam
24th of 126
Rank in Quảng Ninh
2nd of 5

Entire Network (Aggregate)

SNDi value
3.89
Rank in Vietnam
36th of 126
Rank in Quảng Ninh
2nd of 5

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
Ha LongBao LocSennar

In new street additions, Hạ Long and Sennar both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Bảo Lộc built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Hạ Long and Sennar both grew more disconnected from 1975 through 1991-2005, then improved, while Bảo Lộc became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Hạ Long and Bảo Lộc have been growing further apart in their street-network character since 1975.