Tiền Hải in context: Street-network sprawl trends

Tien Hai in context

2.73.64.55.4<19751976–19901991–20052006–2020SNDi of street additions
2.73.64.55.4<19751976–19901991–20052006–2020SNDi of entire street network
Tien HaiThai Binh (Region)Vietnam (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Tiền Hải plotted against Thái Bình and Vietnam. The SNDi of new construction in Tiền Hải peaked in 1991-2005, compared to Thái Bình which peaked in 1991-2005 and Vietnam which rose steadily. Most recently, Tiền Hải's incremental SNDi fell from 4.89 to 4.39 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tiền Hải ranked 2nd out of 3 cities in Thái Bình and 67th out of 126 in Vietnam as of 2020.

New Street Additions (2006–2020)

SNDi value
4.39
Rank in Vietnam
51st of 126
Rank in Thái Bình
3rd of 3

Entire Network (Aggregate)

SNDi value
4.47
Rank in Vietnam
67th of 126
Rank in Thái Bình
2nd of 3

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

What about similarly populated cities?

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
Tien HaiSausarJhundo

In new street additions, Tiền Hải built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Sausar built increasingly disconnected streets over time and Jhundo fluctuated in its street-construction patterns. For the full network, Tiền Hải became progressively more disconnected, while Sausar fluctuated in connectivity and Jhundo fluctuated in connectivity. Tiền Hải and Sausar have been growing further apart in their street-network character since 1975.