Mamoudzou in context: Street-network sprawl trends

Mamoudzou in context

3456<19751976–19901991–20052006–2020SNDi of street additions
3456<19751976–19901991–20052006–2020SNDi of entire street network
MamoudzouMayotte (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Mamoudzou plotted against Mayotte. The SNDi of new construction in Mamoudzou rose steadily, while Mayotte was at its lowest in 1991-2005. Most recently, Mamoudzou's incremental SNDi rose from 4.34 to 6.11 between 1991-2005 and 2006-2020. In terms of the aggregate network, Mamoudzou ranked 1st out of 1 in Mayotte as of 2020.

New Street Additions (2006–2020)

SNDi value
6.11
Rank in Mayotte
1st of 1

Entire Network (Aggregate)

SNDi value
3.37
Rank in Mayotte
1st of 1

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
MamoudzouLuanzhouInter-nishi

In new street additions, Mamoudzou built increasingly disconnected streets over time, while Luanzhou fluctuated in street-construction patterns and Inter-nishi built increasingly disconnected streets from 1975 through 1976-1990, then improved. Looking at the full network, Luanzhou and Inter-nishi both grew more disconnected from 1975 through 1976-1990, then improved, while Mamoudzou became progressively more disconnected. Notably, Mamoudzou had a more connected network than Luanzhou in 1975, but the two have since reversed their relative ranking.