Rongcheng in context: Street-network sprawl trends

Rongcheng in context

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
RongchengHebei (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Rongcheng plotted against Hebei and China. The SNDi of new construction in Rongcheng peaked in 1991-2005, compared to Hebei which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Rongcheng's incremental SNDi fell from 2.9 to 2.55 between 1991-2005 and 2006-2020. In terms of the aggregate network, Rongcheng ranked 29th out of 120 cities in Hebei and 555th out of 1843 in China as of 2020.

New Street Additions (2006–2020)

SNDi value
2.55
Rank in China
551st of 1843
Rank in Hebei
28th of 120

Entire Network (Aggregate)

SNDi value
2.47
Rank in China
555th of 1843
Rank in Hebei
29th of 120

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

What about similarly populated cities?

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
RongchengNarsampetArwal

In new street additions, Rongcheng and Arwal both built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Narsampet built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Rongcheng became progressively more disconnected, while Narsampet became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards and Arwal grew more disconnected from 1975 through 1991-2005, then improved. Rongcheng and Narsampet have been converging in their street-network character since 1975.