Sơn Tây in context: Street-network sprawl trends
Son Tay in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Sơn Tây plotted against Hà Nội and Vietnam. The SNDi of new construction in Sơn Tây peaked in 1991-2005, compared to Hà Nội which peaked in 1991-2005 and Vietnam which rose steadily. Most recently, Sơn Tây's incremental SNDi fell from 5.16 to 4.84 between 1991-2005 and 2006-2020. In terms of the aggregate network, Sơn Tây ranked 5th out of 9 cities in Hà Nội and 88th out of 126 in Vietnam as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 4.84
- Rank in Vietnam
- 71st of 126
- Rank in Hà Nội
- 6th of 9
Entire Network (Aggregate)
- SNDi value
- 4.92
- Rank in Vietnam
- 88th of 126
- Rank in Hà Nội
- 5th of 9
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
- Huaiyang, China
- Almeria, Spain
- Parauapebas, Brazil
- Tân Châu, Vietnam
- Chipata, Zambia
- Xishui County, China
While Huaiyang and Tân Châu both built increasingly disconnected streets from 1975 through 1976-1990, then improved, Sơn Tây built increasingly disconnected streets from 1975 through 1991-2005, then improved in new street additions. For the full network, Sơn Tây and Tân Châu both grew more disconnected from 1975 through 1991-2005, then improved, while Huaiyang grew more disconnected from 1975 through 1976-1990, then improved.