Ishiagu in context: Street-network sprawl trends

Ishiagu in context

2.83.54.24.9<19751976–19901991–20052006–2020SNDi of street additions
2.83.54.24.9<19751976–19901991–20052006–2020SNDi of entire street network
IshiaguEbonyi (Region)Nigeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ishiagu plotted against Ebonyi and Nigeria. While Ebonyi and Nigeria both followed a zig-zag trend with an overall increase, Ishiagu's new street additions followed a zig-zag trend with an overall increase. Most recently, Ishiagu's incremental SNDi rose from 2.51 to 3.46 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ishiagu ranked 1st out of 9 cities in Ebonyi and 164th out of 422 in Nigeria as of 2020.

New Street Additions (2006–2020)

SNDi value
3.46
Rank in Nigeria
141st of 422
Rank in Ebonyi
1st of 9

Entire Network (Aggregate)

SNDi value
2.8
Rank in Nigeria
164th of 422
Rank in Ebonyi
1st of 9

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

What about similarly populated cities?

1.42.12.83.5<19751976–19901991–20052006–2020SNDi of street additions
1.42.12.83.5<19751976–19901991–20052006–2020SNDi of entire street network
IshiaguXichongMaldonado

While Xichong and Maldonado both built increasingly disconnected streets over time, Ishiagu fluctuated in its street-construction patterns in new street additions. Looking at the full network, Xichong and Maldonado both became progressively more disconnected, while Ishiagu fluctuated in connectivity.