Quảng Phú 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 Quảng Phú plotted against Đắk Lắk and Vietnam. While Đắk Lắk and Vietnam both rose steadily, Quảng Phú's new street additions rose steadily. Most recently, Quảng Phú's incremental SNDi rose from 2.55 to 4.02 between 1991-2005 and 2006-2020. In terms of the aggregate network, Quảng Phú ranked 1st out of 4 cities in Đắk Lắk and 1st 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?

• N'guigmi, Niger
• Basoko, Democratic Republic of the Congo
• Yongding, China
• Ravulapalem, India
• Tula, México
• Uba, Nigeria

In new street additions, Quảng Phú and Ravulapalem both built increasingly disconnected streets over time, while N'guigmi built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Quảng Phú and Ravulapalem both became progressively more disconnected, while N'guigmi became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Quảng Phú and N'guigmi have been growing further apart in their street-network character since 1975.