Dongying in context: Street-network sprawl trends

Dongying in context

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
DongyingShandong (Region)China (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Dongying plotted against Shandong and China. The SNDi of new construction in Dongying was at its lowest in 1976-1990, compared to Shandong which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Dongying's incremental SNDi rose from 2.07 to 2.64 between 1991-2005 and 2006-2020.

New Street Additions (2006–2020)

SNDi value
2.64

Entire Network (Aggregate)

SNDi value
2.24

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

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
DongyingLafayetteShone

In new street additions, Dongying built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Lafayette built increasingly disconnected streets from 1975 through 1991-2005, then improved and Shone built increasingly disconnected streets over time. Looking at the full network, Lafayette and Shone both became progressively more disconnected, while Dongying became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Dongying and Lafayette have been growing further apart in their street-network character since 1975.