彭镇 in context: Street-network sprawl trends

Peng Zhen in context

2.433.64.2<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.2<19751976–19901991–20052006–2020SNDi of entire street network
Peng Zhen Shanghai (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with 彭镇 plotted against Shanghai and China. The SNDi of new construction in 彭镇 was at its lowest in 1991-2005, compared to Shanghai which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, 彭镇's incremental SNDi rose from 3.14 to 3.88 between 1991-2005 and 2006-2020. In terms of the aggregate network, 彭镇 ranked 6th out of 11 cities in Shanghai and 1437th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
3.88
Rank in China
1346th of 1843
Rank in Shanghai
6th of 11

Entire Network (Aggregate)

SNDi value
3.63
Rank in China
1437th of 1843
Rank in Shanghai
6th of 11

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

What about similarly populated cities?

246<19751976–19901991–20052006–2020SNDi of street additions
246<19751976–19901991–20052006–2020SNDi of entire street network
Peng Zhen RoudanKahului

In new street additions, 彭镇 built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, while Roudan built increasingly disconnected streets from 1975 through 1976-1990, then improved and Kahului built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, 彭镇 became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards, while Roudan grew more disconnected from 1975 through 1976-1990, then improved and Kahului grew more disconnected from 1975 through 1991-2005, then improved. 彭镇 and Kahului have been growing further apart in their street-network character since 1975.