Baochi in context: Street-network sprawl trends

Baochi in context

33.544.5<19751976–19901991–20052006–2020SNDi of street additions
33.544.5<19751976–19901991–20052006–2020SNDi of entire street network
BaochiTianjin (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Baochi plotted against Tianjin and China. The SNDi of new construction in Baochi followed a zig-zag trend with an overall increase, compared to Tianjin which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Baochi's incremental SNDi fell from 3.34 to 3.27 between 1991-2005 and 2006-2020. In terms of the aggregate network, Baochi ranked 9th out of 16 cities in Tianjin and 1185th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.27
Rank in China
1033rd of 1843
Rank in Tianjin
8th of 16

Entire Network (Aggregate)

SNDi value
3.21
Rank in China
1185th of 1843
Rank in Tianjin
9th of 16

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

What about similarly populated cities?

468<19751976–19901991–20052006–2020SNDi of street additions
468<19751976–19901991–20052006–2020SNDi of entire street network
BaochiRubavuSan Antonio de los Altos [Los Teques]

In new street additions, Baochi fluctuated in its street-construction patterns, while Rubavu built increasingly disconnected streets over time and San Antonio de los Altos [Los Teques] fluctuated in its street-construction patterns. Looking at the full network, Rubavu and San Antonio de los Altos [Los Teques] both became progressively more disconnected, while Baochi became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Notably, Baochi had a more sprawly network than Rubavu in 1975 but the two have since reversed their relative ranking.