Foya City in context: Street-network sprawl trends

Foya City in context

345678<19751976–19901991–20052006–2020SNDi of street additions
345678<19751976–19901991–20052006–2020SNDi of entire street network
Foya CityLofa (Region)Liberia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Foya City plotted against Lofa and Liberia. The SNDi of new construction in Foya City peaked in 1991-2005, compared to Lofa which rose steadily and Liberia which followed a zig-zag trend with an overall increase. Most recently, Foya City's incremental SNDi fell from 6.24 to 5.31 between 1991-2005 and 2006-2020. In terms of the aggregate network, Foya City ranked 1st out of 2 cities in Lofa and 3rd out of 9 in Liberia as of 2020.

New Street Additions (2006–2020)

SNDi value
5.31
Rank in Liberia
2nd of 9
Rank in Lofa
1st of 2

Entire Network (Aggregate)

SNDi value
4.7
Rank in Liberia
3rd of 9
Rank in Lofa
1st of 2

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
Foya CityColloKafr Kila Al Bab

While Collo and Kafr Kila Al Bab both built increasingly disconnected streets over time, Foya City built increasingly disconnected streets from 1975 through 1991-2005, then improved in new street additions. For the full street network, though, all three cities follow the same trend.