Longmen in context: Street-network sprawl trends

Longmen in context

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
LongmenGuangdong (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Longmen plotted against Guangdong and China. The SNDi of new construction in Longmen rose steadily, compared to Guangdong which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Longmen's incremental SNDi rose from 3.09 to 3.88 between 1991-2005 and 2006-2020.

New Street Additions (2006–2020)

SNDi value
3.88

Entire Network (Aggregate)

SNDi value
2.7

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

What about similarly populated cities?

369<19751976–19901991–20052006–2020SNDi of street additions
369<19751976–19901991–20052006–2020SNDi of entire street network
LongmenAl-BuraimiKhagrachhari

In new street additions, Longmen and Khagrachhari both built increasingly disconnected streets over time, while Al-Buraimi built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Longmen and Khagrachhari both became progressively more disconnected, while Al-Buraimi grew more disconnected from 1975 through 1991-2005, then improved. Longmen and Al-Buraimi have been converging in their street-network character since 1975.