Nangang Industrial Zone in context: Street-network sprawl trends

Nangang Industrial Zone in context

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

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Nangang Industrial Zone plotted against Tianjin and China. The SNDi of new construction in Nangang Industrial Zone was at its lowest in 1976-1990, compared to Tianjin which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Nangang Industrial Zone's incremental SNDi rose from 2.86 to 4.2 between 1991-2005 and 2006-2020. In terms of the aggregate network, Nangang Industrial Zone ranked 6th out of 16 cities in Tianjin and 1006th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
4.2
Rank in China
1466th of 1843
Rank in Tianjin
14th of 16

Entire Network (Aggregate)

SNDi value
2.97
Rank in China
1006th of 1843
Rank in Tianjin
6th of 16

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
Nangang Industrial ZoneHpakantArifwala

While Hpakant and Arifwala both built increasingly disconnected streets over time, Nangang Industrial Zone built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns in new street additions. Looking at the full network, Hpakant and Arifwala both became progressively more disconnected, while Nangang Industrial Zone became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Notably, Nangang Industrial Zone had a more sprawly network than Hpakant in 1975 but the two have since reversed their relative ranking.