Hanshou in context: Street-network sprawl trends

Hanshou in context

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

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Hanshou plotted against Hunan and China. The SNDi of new construction in Hanshou was at its lowest in 1976-1990, compared to Hunan which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Hanshou's incremental SNDi rose from 3.12 to 3.19 between 1991-2005 and 2006-2020. In terms of the aggregate network, Hanshou ranked 44th out of 89 cities in Hunan and 953rd out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.19
Rank in China
998th of 1843
Rank in Hunan
52nd of 89

Entire Network (Aggregate)

SNDi value
2.91
Rank in China
953rd of 1843
Rank in Hunan
44th of 89

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

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
HanshouChengguTamaca

While Chenggu and Tamaca both fluctuated in its street-construction patterns, Hanshou built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns in new street additions. For the full network, Hanshou and Tamaca both became progressively more disconnected, while Chenggu grew more disconnected from 1975 through 1976-1990, then improved. Hanshou and Chenggu have been converging in their street-network character since 1975.