Concepción in context: Street-network sprawl trends

Concepcion in context

1.42.12.83.5<19751976–19901991–20052006–2020SNDi of street additions
1.42.12.83.5<19751976–19901991–20052006–2020SNDi of entire street network
ConcepcionTucuman (Region)Argentina (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Concepción plotted against Tucumán and Argentina. The SNDi of new construction in Concepción rose steadily, compared to Tucumán which rose steadily and Argentina which followed a zig-zag trend with an overall increase. Most recently, Concepción's incremental SNDi rose from 2.43 to 2.92 between 1991-2005 and 2006-2020. In terms of the aggregate network, Concepción ranked 1st out of 2 cities in Tucumán and 64th out of 77 in Argentina as of 2020.

New Street Additions (2006–2020)

SNDi value
2.92
Rank in Argentina
67th of 77
Rank in Tucumán
1st of 2

Entire Network (Aggregate)

SNDi value
2.01
Rank in Argentina
64th of 77
Rank in Tucumán
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
ConcepcionFair OaksBena-Leka

In new street additions, Concepción and Fair Oaks both built increasingly disconnected streets over time, while Bena-Leka fluctuated in its street-construction patterns. For the full network, Concepción and Fair Oaks both became progressively more disconnected, while Bena-Leka fluctuated in connectivity. Concepción and Bena-Leka have been converging in their street-network character since 1975.