Laiyang in context: Street-network sprawl trends
Laiyang in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Laiyang plotted against Shandong and China. The SNDi of new construction in Laiyang rose steadily, compared to Shandong which peaked in 1976-1990 and China which followed a zig-zag trend with an overall increase. Most recently, Laiyang's incremental SNDi rose from 3.47 to 4.54 between 1991-2005 and 2006-2020. In terms of the aggregate network, Laiyang ranked 101st out of 124 cities in Shandong and 1194th out of 1843 in China as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 4.54
- Rank in China
- 1544th of 1843
- Rank in Shandong
- 118th of 124
Entire Network (Aggregate)
- SNDi value
- 3.21
- Rank in China
- 1194th of 1843
- Rank in Shandong
- 101st of 124
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
In new street additions, Laiyang built increasingly disconnected streets over time, while Bilbeis fluctuated in its street-construction patterns and Ambur built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. For the full network, Laiyang became progressively more disconnected, while Bilbeis fluctuated in connectivity and Ambur became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Notably, Laiyang had a more connected network than Bilbeis in 1975 but the two have since reversed their relative ranking.