Ambano in context: Street-network sprawl trends
Ambano in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ambano plotted against Antananarivo and Madagascar. The SNDi of new construction in Ambano followed a zig-zag trend with an overall increase, compared to Antananarivo which followed a zig-zag trend with an overall increase and Madagascar which rose steadily. Most recently, Ambano's incremental SNDi rose from 6.69 to 7.5 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ambano ranked 4th out of 4 cities in Antananarivo and 20th out of 21 in Madagascar as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 7.5
- Rank in Madagascar
- 18th of 21
- Rank in Antananarivo
- 4th of 4
Entire Network (Aggregate)
- SNDi value
- 7.19
- Rank in Madagascar
- 20th of 21
- Rank in Antananarivo
- 4th of 4
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
- Vanderbijlpark, South Africa
- Ziguinchor, Senegal
- Awka, Nigeria
- La Romana, Dominican Republic
- Reno, United States
- Koléa, Algeria
In new street additions, Ambano and La Romana both fluctuated in its street-construction patterns, while Vanderbijlpark built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Ambano and La Romana both fluctuated in connectivity, while Vanderbijlpark became progressively more disconnected.