Shijiao in context: Street-network sprawl trends

Shijiao in context

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
ShijiaoGuangdong (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Shijiao plotted against Guangdong and China. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Shijiao's incremental SNDi rose from 1.72 to 2.19 between 1991-2005 and 2006-2020. In terms of the aggregate network, Shijiao ranked 8th out of 133 cities in Guangdong and 206th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.19
Rank in China
335th of 1843
Rank in Guangdong
13th of 133

Entire Network (Aggregate)

SNDi value
1.96
Rank in China
206th of 1843
Rank in Guangdong
8th of 133

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

What about similarly populated cities?

1.522.53<19751976–19901991–20052006–2020SNDi of street additions
1.522.53<19751976–19901991–20052006–2020SNDi of entire street network
ShijiaoAl JahraZhanaozen

In new street additions, Shijiao fluctuated in its street-construction patterns, while Al Jahra built increasingly connected streets over time and Zhanaozen built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Shijiao fluctuated in connectivity, while Al Jahra became progressively more connected and Zhanaozen grew more disconnected from 1975 through 1991-2005, then improved. Notably, Shijiao had a more connected network than Zhanaozen in 1975 but the two have since reversed their relative ranking.