Binjiangzhen 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 Binjiangzhen plotted against Jiangsu and China. The SNDi of new construction in Binjiangzhen was at its lowest in 1991-2005, compared to Jiangsu which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Binjiangzhen's incremental SNDi rose from 2.4 to 4.5 between 1991-2005 and 2006-2020. In terms of the aggregate network, Binjiangzhen ranked 79th out of 101 cities in Jiangsu and 1348th out of 1843 in China as of 2020.

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

What about similarly populated cities?

• Al Fajr, Iraq
• Dowlatabad, Afghanistan
• San José del Guaviare, Colombia
• Ikotos, South Sudan
• Islam Qala, Afghanistan
• Ramla, Israel

In new street additions, Binjiangzhen built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, while Al Fajr built increasingly disconnected streets from 1975 through 1976-1990, then improved and Ikotos fluctuated in its street-construction patterns. For the full network, Binjiangzhen became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards, while Al Fajr grew more disconnected from 1975 through 1976-1990, then improved and Ikotos fluctuated in connectivity. Binjiangzhen and Al Fajr have been converging in their street-network character since 1975.