Yogomaia in context: Street-network sprawl trends

Yogomaia in context

345678<19751976–19901991–20052006–2020SNDi of street additions
345678<19751976–19901991–20052006–2020SNDi of entire street network
YogomaiaNorthern (Region)Sierra Leone (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Yogomaia plotted against Northern and Sierra Leone. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Yogomaia's incremental SNDi rose from 6.3 to 7.67 between 1991-2005 and 2006-2020. In terms of the aggregate network, Yogomaia ranked 4th out of 7 cities in Northern and 6th out of 12 in Sierra Leone as of 2020.

New Street Additions (2006–2020)

SNDi value
7.67
Rank in Sierra Leone
9th of 12
Rank in Northern
5th of 7

Entire Network (Aggregate)

SNDi value
4.4
Rank in Sierra Leone
6th of 12
Rank in Northern
4th of 7

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
YogomaiaBagamoyoSinjar

In new street additions, Yogomaia and Bagamoyo both built increasingly disconnected streets over time, while Sinjar fluctuated in its street-construction patterns. For the full network, Yogomaia and Bagamoyo both became progressively more disconnected, while Sinjar fluctuated in connectivity. Yogomaia and Bagamoyo have been growing further apart in their street-network character since 1975.