Uông Bí in context: Street-network sprawl trends

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Uông Bí plotted against Quảng Ninh and Vietnam. The SNDi of new construction in Uông Bí peaked in 1991-2005, compared to Quảng Ninh which rose steadily and Vietnam which rose steadily. Most recently, Uông Bí's incremental SNDi fell from 4.64 to 4.49 between 1991-2005 and 2006-2020. In terms of the aggregate network, Uông Bí ranked 4th out of 5 cities in Quảng Ninh and 56th out of 126 in Vietnam as of 2020.

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

What about similarly populated cities?

• Islamnagar, India
• Hijazah, Egypt
• Hirna, Ethiopia
• K'Ali K'Esa Bota, Ethiopia
• Xinxian, China
• Mule, China

In new street additions, Uông Bí built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Islamnagar fluctuated in its street-construction patterns and K'Ali K'Esa Bota fluctuated in its street-construction patterns. For the full network, Uông Bí became progressively more disconnected, while Islamnagar fluctuated in connectivity and K'Ali K'Esa Bota fluctuated in connectivity. Uông Bí and Islamnagar have been growing further apart in their street-network character since 1975.