Tianya District in context: Street-network sprawl trends

Tianya District in context

3456<19751976–19901991–20052006–2020SNDi of street additions
3456<19751976–19901991–20052006–2020SNDi of entire street network
Tianya DistrictHainan (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Tianya District plotted against Hainan and China. The SNDi of new construction in Tianya District rose steadily, compared to Hainan which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Tianya District's incremental SNDi rose from 5.04 to 6.43 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tianya District ranked 16th out of 17 cities in Hainan and 1750th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
6.43
Rank in China
1762nd of 1843
Rank in Hainan
16th of 17

Entire Network (Aggregate)

SNDi value
5.31
Rank in China
1750th of 1843
Rank in Hainan
16th of 17

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

What about similarly populated cities?

3456<19751976–19901991–20052006–2020SNDi of street additions
3456<19751976–19901991–20052006–2020SNDi of entire street network
Tianya DistrictHujra Shah MuqeemIfakara

In new street additions, Tianya District built increasingly disconnected streets over time, while Hujra Shah Muqeem fluctuated in its street-construction patterns and Ifakara built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Tianya District became progressively more disconnected, while Hujra Shah Muqeem fluctuated in connectivity and Ifakara became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Notably, Tianya District had a more connected network than Hujra Shah Muqeem in 1975 but the two have since reversed their relative ranking.