Enugu-Ezike in context: Street-network sprawl trends

Enugu-Ezike in context

3.64.55.46.3<19751976–19901991–20052006–2020SNDi of street additions
3.64.55.46.3<19751976–19901991–20052006–2020SNDi of entire street network
Enugu-EzikeEnugu (Region)Nigeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Enugu-Ezike plotted against Enugu and Nigeria. The SNDi of new construction in Enugu-Ezike rose steadily, compared to Enugu which rose steadily and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Enugu-Ezike's incremental SNDi rose from 5.87 to 6.19 between 1991-2005 and 2006-2020. In terms of the aggregate network, Enugu-Ezike ranked 9th out of 11 cities in Enugu and 366th out of 422 in Nigeria as of 2020.

New Street Additions (2006–2020)

SNDi value
6.19
Rank in Nigeria
358th of 422
Rank in Enugu
10th of 11

Entire Network (Aggregate)

SNDi value
4.81
Rank in Nigeria
366th of 422
Rank in Enugu
9th of 11

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
Enugu-EzikeNgongHeshun

In new street additions, Enugu-Ezike and Ngong both built increasingly disconnected streets over time, while Heshun fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend. Enugu-Ezike and Ngong have been growing further apart in their street-network character since 1975.