Ikara in context: Street-network sprawl trends

Ikara in context

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
IkaraKaduna (Region)Nigeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ikara plotted against Kaduna and Nigeria. The SNDi of new construction in Ikara peaked in 1976-1990, compared to Kaduna which rose steadily and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Ikara's incremental SNDi fell from 1.82 to 1.81 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ikara ranked 4th out of 11 cities in Kaduna and 72nd out of 422 in Nigeria as of 2020.

New Street Additions (2006–2020)

SNDi value
1.81
Rank in Nigeria
42nd of 422
Rank in Kaduna
2nd of 11

Entire Network (Aggregate)

SNDi value
1.96
Rank in Nigeria
72nd of 422
Rank in Kaduna
4th of 11

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

What about similarly populated cities?

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
IkaraRouthkhaiTogtoh

In new street additions, Ikara and Togtoh both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Routhkhai built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Ikara and Routhkhai both grew more disconnected from 1975 through 1991-2005, then improved, while Togtoh grew more disconnected from 1975 through 1976-1990, then improved. Ikara and Routhkhai have been growing further apart in their street-network character since 1975.