Bozhou in context: Street-network sprawl trends

Bozhou in context

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
BozhouAnhui (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Bozhou plotted against Anhui and China. The SNDi of new construction in Bozhou peaked in 1976-1990, compared to Anhui which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Bozhou's incremental SNDi fell from 1.92 to 1.35 between 1991-2005 and 2006-2020. In terms of the aggregate network, Bozhou ranked 12th out of 74 cities in Anhui as of 2020.

New Street Additions (2006–2020)

SNDi value
1.35
Rank in Anhui
3rd of 74

Entire Network (Aggregate)

SNDi value
1.85
Rank in Anhui
12th of 74

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

What about similarly populated cities?

1.42.12.83.5<19751976–19901991–20052006–2020SNDi of street additions
1.42.12.83.5<19751976–19901991–20052006–2020SNDi of entire street network
BozhouNorth Richland HillsYulin

In new street additions, Bozhou built increasingly disconnected streets from 1975 through 1976-1990, then improved, while North Richland Hills built increasingly disconnected streets from 1975 through 1991-2005, then improved and Yulin fluctuated in its street-construction patterns. For the full network, Bozhou grew more disconnected from 1975 through 1976-1990, then improved, while North Richland Hills became progressively more disconnected and Yulin fluctuated in connectivity. Bozhou and North Richland Hills have been growing further apart in their street-network character since 1975.