Ama Apu in context: Street-network sprawl trends

Ama Apu in context

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
Ama ApuAbia (Region)Nigeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ama Apu plotted against Abia and Nigeria. The SNDi of new construction in Ama Apu peaked in 1976-1990, compared to Abia which rose steadily and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Ama Apu's incremental SNDi fell from 1.98 to 1.81 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ama Apu ranked 1st out of 9 cities in Abia and 118th out of 422 in Nigeria as of 2020.

New Street Additions (2006–2020)

SNDi value
1.81
Rank in Nigeria
43rd of 422
Rank in Abia
1st of 9

Entire Network (Aggregate)

SNDi value
2.43
Rank in Nigeria
118th of 422
Rank in Abia
1st of 9

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

What about similarly populated cities?

0246<19751976–19901991–20052006–2020SNDi of street additions
0246<19751976–19901991–20052006–2020SNDi of entire street network
Ama ApuTekkekoyGohad

In new street additions, Ama Apu and Tekkeköy both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Gohad fluctuated in its street-construction patterns. For the full network, Ama Apu and Tekkeköy both grew more disconnected from 1975 through 1976-1990, then improved, while Gohad fluctuated in connectivity. Ama Apu and Tekkeköy have been converging in their street-network character since 1975.