Banankoro in context: Street-network sprawl trends

Banankoro in context

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
BanankoroKankan (Region)Guinea (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Banankoro plotted against Kankan and Guinea. The SNDi of new construction in Banankoro peaked in 1976-1990, compared to Kankan which followed a zig-zag trend with an overall increase and Guinea which rose steadily. Most recently, Banankoro's incremental SNDi fell from 3.47 to 3.0 between 1991-2005 and 2006-2020. In terms of the aggregate network, Banankoro ranked 8th out of 8 cities in Kankan and 13th out of 24 in Guinea as of 2020.

New Street Additions (2006–2020)

SNDi value
3.0
Rank in Guinea
10th of 24
Rank in Kankan
7th of 8

Entire Network (Aggregate)

SNDi value
3.47
Rank in Guinea
13th of 24
Rank in Kankan
8th of 8

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

What about similarly populated cities?

0.91.82.73.6<19751976–19901991–20052006–2020SNDi of street additions
0.91.82.73.6<19751976–19901991–20052006–2020SNDi of entire street network
BanankoroYongningMudhol

In new street additions, Banankoro and Yongning both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Mudhol built increasingly disconnected streets over time. For the full network, Banankoro and Yongning both grew more disconnected from 1975 through 1976-1990, then improved, while Mudhol became progressively more disconnected. Banankoro and Mudhol have been converging in their street-network character since 1975.