Lafia in context: Street-network sprawl trends

Lafia in context

33.64.24.8<19751976–19901991–20052006–2020SNDi of street additions
33.64.24.8<19751976–19901991–20052006–2020SNDi of entire street network
LafiaNasarawa (Region)Nigeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Lafia plotted against Nasarawa and Nigeria. The SNDi of new construction in Lafia rose steadily, compared to Nasarawa which rose steadily and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Lafia's incremental SNDi rose from 3.25 to 3.47 between 1991-2005 and 2006-2020. In terms of the aggregate network, Lafia ranked 4th out of 7 cities in Nasarawa and 191st out of 422 in Nigeria as of 2020.

New Street Additions (2006–2020)

SNDi value
3.47
Rank in Nigeria
143rd of 422
Rank in Nasarawa
2nd of 7

Entire Network (Aggregate)

SNDi value
3.05
Rank in Nigeria
191st of 422
Rank in Nasarawa
4th of 7

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

What about similarly populated cities?

036912<19751976–19901991–20052006–2020SNDi of street additions
036912<19751976–19901991–20052006–2020SNDi of entire street network
LafiaJuazeiro do NorteSunamganj

While Juazeiro do Norte and Sunamganj both fluctuated in its street-construction patterns, Lafia built increasingly disconnected streets over time in new street additions. For the full street network, though, all three cities follow the same trend.