Zengjia in context: Street-network sprawl trends
Zengjia in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Zengjia plotted against Chongqing and China. The SNDi of new construction in Zengjia peaked in 1976-1990, compared to Chongqing which followed a zig-zag trend with an overall increase and China which followed a zig-zag trend with an overall increase. Most recently, Zengjia's incremental SNDi fell from 3.61 to 2.74 between 1991-2005 and 2006-2020. In terms of the aggregate network, Zengjia ranked 16th out of 47 cities in Chongqing and 932nd out of 1843 in China as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 2.74
- Rank in China
- 683rd of 1843
- Rank in Chongqing
- 12th of 47
Entire Network (Aggregate)
- SNDi value
- 2.89
- Rank in China
- 932nd of 1843
- Rank in Chongqing
- 16th of 47
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
- Las Tunas, Cuba
- Baton Rouge, United States
- Lakhnaur, India
- Khasavyurt, Russia
- Naqamte, Ethiopia
- Lichinga, Mozambique
In new street additions, Zengjia and Khasavyurt both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Las Tunas fluctuated in its street-construction patterns. For the full network, Zengjia grew more disconnected from 1975 through 1976-1990, then improved, while Las Tunas became progressively more disconnected and Khasavyurt grew more disconnected from 1975 through 1991-2005, then improved. Notably, Zengjia had a more sprawly network than Khasavyurt in 1975 but the two have since reversed their relative ranking.