Franceville in context: Street-network sprawl trends
Franceville in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Franceville plotted against Haut-Ogooué and Gabon. The SNDi of new construction in Franceville peaked in 1991-2005, compared to Haut-Ogooué which peaked in 1991-2005 and Gabon which peaked in 1976-1990. Most recently, Franceville's incremental SNDi fell from 10.37 to 9.58 between 1991-2005 and 2006-2020. In terms of the aggregate network, Franceville ranked 2nd out of 2 cities in Haut-Ogooué and 5th out of 5 in Gabon as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 9.58
- Rank in Gabon
- 5th of 5
- Rank in Haut-Ogooué
- 2nd of 2
Entire Network (Aggregate)
- SNDi value
- 6.32
- Rank in Gabon
- 5th of 5
- Rank in Haut-Ogooué
- 2nd of 2
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
In new street additions, Franceville built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Nagaur built increasingly disconnected streets over time and Doumen fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend.