Birni N'Konni in context: Street-network sprawl trends

Birni N'Konni in context

11.522.5<19751976–19901991–20052006–2020SNDi of street additions
11.522.5<19751976–19901991–20052006–2020SNDi of entire street network
Birni N'KonniTahoua (Region)Niger (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Birni N'Konni plotted against Tahoua and Niger. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Birni N'Konni's incremental SNDi rose from 1.63 to 1.75 between 1991-2005 and 2006-2020. In terms of the aggregate network, Birni N'Konni ranked 2nd out of 8 cities in Tahoua and 7th out of 33 in Niger as of 2020.

New Street Additions (2006–2020)

SNDi value
1.75
Rank in Niger
8th of 33
Rank in Tahoua
2nd of 8

Entire Network (Aggregate)

SNDi value
1.36
Rank in Niger
7th of 33
Rank in Tahoua
2nd of 8

Rankings go from most connected to most disconnected — rank 1 is the most connected.

What about similarly populated cities?

0369<19751976–19901991–20052006–2020SNDi of street additions
0369<19751976–19901991–20052006–2020SNDi of entire street network
Birni N'KonniFaridkotHailakandi

Birni N'Konni, Faridkot, and Hailakandi all built increasingly disconnected streets over time in new street construction. The same pattern holds for the full street network. Birni N'Konni and Faridkot have been growing further apart in their street-network character since 1975.