Abalak in context: Street-network sprawl trends
Abalak in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Abalak plotted against Tahoua and Niger. The SNDi of new construction in Abalak was at its lowest in 1976-1990, compared to Tahoua which rose steadily and Niger which rose steadily. Most recently, Abalak's incremental SNDi rose from 5.03 to 7.12 between 1991-2005 and 2006-2020. In terms of the aggregate network, Abalak ranked 8th out of 8 cities in Tahoua and 32nd out of 33 in Niger as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 7.12
- Rank in Niger
- 32nd of 33
- Rank in Tahoua
- 7th of 8
Entire Network (Aggregate)
- SNDi value
- 4.87
- Rank in Niger
- 32nd of 33
- Rank in Tahoua
- 8th of 8
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
While Rosetta and Raniyan both built increasingly disconnected streets over time, Abalak built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns in new street additions. Looking at the full network, Rosetta and Raniyan both became progressively more disconnected, while Abalak became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Notably, Abalak had a more sprawly network than Rosetta in 1975 but the two have since reversed their relative ranking.