Núi Đối 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 Núi Đối plotted against Hải Phòng and Vietnam. The SNDi of new construction in Núi Đối was at its lowest in 1976-1990, compared to Hải Phòng which rose steadily and Vietnam which rose steadily. Most recently, Núi Đối's incremental SNDi rose from 4.85 to 5.94 between 1991-2005 and 2006-2020. In terms of the aggregate network, Núi Đối ranked 2nd out of 2 cities in Hải Phòng and 96th 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?

• Sougueur, Algeria
• Meslo, Ethiopia
• Bishnupur, India
• Santa Cruz Barillas, Guatemala
• Nichlaul, India
• Jerusalem, South Africa

In new street additions, Núi Đối built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Sougueur fluctuated in its street-construction patterns and Santa Cruz Barillas built increasingly disconnected streets over time. Looking at the full network, Sougueur and Santa Cruz Barillas both became progressively more disconnected, while Núi Đối became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Núi Đối and Santa Cruz Barillas have been converging in their street-network character since 1975.