Moanda in context: Street-network sprawl trends

Moanda in context

345678<19751976–19901991–20052006–2020SNDi of street additions
345678<19751976–19901991–20052006–2020SNDi of entire street network
MoandaHaut-Ogooue (Region)Gabon (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Moanda plotted against Haut-Ogooué and Gabon. The SNDi of new construction in Moanda peaked in 1991-2005, compared to Haut-Ogooué which peaked in 1991-2005 and Gabon which peaked in 1976-1990. Most recently, Moanda's incremental SNDi fell from 7.87 to 6.54 between 1991-2005 and 2006-2020. In terms of the aggregate network, Moanda ranked 1st out of 2 cities in Haut-Ogooué and 2nd out of 5 in Gabon as of 2020.

New Street Additions (2006–2020)

SNDi value
6.54
Rank in Gabon
2nd of 5
Rank in Haut-Ogooué
1st of 2

Entire Network (Aggregate)

SNDi value
3.86
Rank in Gabon
2nd of 5
Rank in Haut-Ogooué
1st of 2

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
MoandaSpring ValleyAkbarpur

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