Móng Cái 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 Móng Cái plotted against Quảng Ninh and Vietnam. The SNDi of new construction in Móng Cái was at its lowest in 1991-2005, compared to Quảng Ninh which rose steadily and Vietnam which rose steadily. Most recently, Móng Cái's incremental SNDi rose from 3.36 to 4.8 between 1991-2005 and 2006-2020. In terms of the aggregate network, Móng Cái ranked 3rd out of 5 cities in Quảng Ninh and 41st 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?

• Alangulam, India
• Liu'erbao, China
• Quwo, China
• Dengkou, China
• Dhamdaha, India
• Cosmópolis, Brazil

In new street additions, Móng Cái built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, while Alangulam built increasingly disconnected streets over time and Dengkou built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Móng Cái became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards, while Alangulam became progressively more disconnected and Dengkou grew more disconnected from 1975 through 1991-2005, then improved. Móng Cái and Alangulam have been converging in their street-network character since 1975.