Mahera in context: Street-network sprawl trends

Mahera in context

3456<19751976–19901991–20052006–2020SNDi of street additions
3456<19751976–19901991–20052006–2020SNDi of entire street network
MaheraNorthern (Region)Sierra Leone (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Mahera plotted against Northern and Sierra Leone. The SNDi of new construction in Mahera peaked in 1991-2005, compared to Northern which rose steadily and Sierra Leone which rose steadily. Most recently, Mahera's incremental SNDi fell from 6.17 to 5.83 between 1991-2005 and 2006-2020. In terms of the aggregate network, Mahera ranked 3rd out of 7 cities in Northern and 5th out of 12 in Sierra Leone as of 2020.

New Street Additions (2006–2020)

SNDi value
5.83
Rank in Sierra Leone
5th of 12
Rank in Northern
3rd of 7

Entire Network (Aggregate)

SNDi value
3.95
Rank in Sierra Leone
5th of 12
Rank in Northern
3rd of 7

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

What about similarly populated cities?

246810<19751976–19901991–20052006–2020SNDi of street additions
246810<19751976–19901991–20052006–2020SNDi of entire street network
MaheraKaliyaganjBumi Mulyo

In new street additions, Mahera built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Kaliyaganj fluctuated in its street-construction patterns and Bumi Mulyo built increasingly disconnected streets over time. For the full network, Mahera and Bumi Mulyo both became progressively more disconnected, while Kaliyaganj fluctuated in connectivity. Mahera and Kaliyaganj have been converging in their street-network character since 1975.