Collo in context: Street-network sprawl trends
Collo in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Collo plotted against Skikda and Algeria. The SNDi of new construction in Collo rose steadily, compared to Skikda which followed a zig-zag trend with an overall increase and Algeria which followed a zig-zag trend with an overall decrease. Most recently, Collo's incremental SNDi rose from 4.61 to 5.84 between 1991-2005 and 2006-2020. In terms of the aggregate network, Collo ranked 1st out of 2 cities in Skikda and 98th out of 109 in Algeria as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 5.84
- Rank in Algeria
- 104th of 109
- Rank in Skikda
- 1st of 2
Entire Network (Aggregate)
- SNDi value
- 4.37
- Rank in Algeria
- 98th of 109
- Rank in Skikda
- 1st of 2
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
In new street additions, Collo built increasingly disconnected streets over time, while 毕家村 built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns and Foya City built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Collo and Foya City both became progressively more disconnected, while 毕家村 became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Collo and 毕家村 have been growing further apart in their street-network character since 1975.