Donghai in context: Street-network sprawl trends
Donghai in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Donghai plotted against Jiangsu and China. The SNDi of new construction in Donghai was at its lowest in 1976-1990, compared to Jiangsu which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Donghai's incremental SNDi rose from 3.75 to 4.69 between 1991-2005 and 2006-2020. In terms of the aggregate network, Donghai ranked 94th out of 101 cities in Jiangsu and 1636th out of 1843 in China as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 4.69
- Rank in China
- 1574th of 1843
- Rank in Jiangsu
- 94th of 101
Entire Network (Aggregate)
- SNDi value
- 4.38
- Rank in China
- 1636th of 1843
- Rank in Jiangsu
- 94th of 101
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
- Guannan, China
- Ubon Ratchathani, Thailand
- Yushan, China
- Kalay, Myanmar
- Salalah, Oman
- Nijmegen, Netherlands
In new street additions, Donghai built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Guannan built increasingly disconnected streets from 1975 through 1991-2005, then improved and Kalay built increasingly disconnected streets over time. Looking at the full network, Guannan and Kalay both became progressively more disconnected, while Donghai became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Donghai and Kalay have been converging in their street-network character since 1975.