Gidan Mai Ungwan in context: Street-network sprawl trends

Gidan Mai Ungwan in context

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
Gidan Mai UngwanKatsina (Region)Nigeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Gidan Mai Ungwan plotted against Katsina and Nigeria. The SNDi of new construction in Gidan Mai Ungwan peaked in 1991-2005, compared to Katsina which rose steadily and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Gidan Mai Ungwan's incremental SNDi fell from 1.1 to 0.99 between 1991-2005 and 2006-2020. In terms of the aggregate network, Gidan Mai Ungwan ranked 2nd out of 15 cities in Katsina and 5th out of 422 in Nigeria as of 2020.

New Street Additions (2006–2020)

SNDi value
0.99
Rank in Nigeria
9th of 422
Rank in Katsina
2nd of 15

Entire Network (Aggregate)

SNDi value
0.86
Rank in Nigeria
5th of 422
Rank in Katsina
2nd of 15

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

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
Gidan Mai UngwanFaqirwaliDevadurga

In new street additions, Gidan Mai Ungwan built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Faqirwali built increasingly disconnected streets over time and Devadurga fluctuated in its street-construction patterns. For the full network, Gidan Mai Ungwan and Faqirwali both became progressively more disconnected, while Devadurga became progressively more connected. Gidan Mai Ungwan and Faqirwali have been growing further apart in their street-network character since 1975.