Funchal in context: Street-network sprawl trends

Funchal in context

3.244.85.6<19751976–19901991–20052006–2020SNDi of street additions
3.244.85.6<19751976–19901991–20052006–2020SNDi of entire street network
FunchalMadeira (Region)Portugal (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Funchal plotted against Madeira and Portugal. The SNDi of new construction in Funchal peaked in 1976-1990, compared to Madeira which peaked in 1976-1990 and Portugal which rose steadily. Most recently, Funchal's incremental SNDi fell from 4.22 to 3.4 between 1991-2005 and 2006-2020. In terms of the aggregate network, Funchal ranked 1st out of 1 cities in Madeira and 9th out of 9 in Portugal as of 2020.

New Street Additions (2006–2020)

SNDi value
3.4
Rank in Portugal
5th of 9
Rank in Madeira
1st of 1

Entire Network (Aggregate)

SNDi value
3.81
Rank in Portugal
9th of 9
Rank in Madeira
1st of 1

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
FunchalCiudad AcunaKhiva

In new street additions, Funchal and Ciudad Acuña both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Khiva built increasingly disconnected streets from 1975 through 1991-2005, then improved. Looking at the full network, Ciudad Acuña and Khiva both grew more disconnected from 1975 through 1991-2005, then improved, while Funchal grew more disconnected from 1975 through 1976-1990, then improved. Funchal and Ciudad Acuña have been converging in their street-network character since 1975.