Concepción in context: Street-network sprawl trends

Concepcion in context

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
ConcepcionBio-Bio (Region)Chile (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Concepción plotted against Bío-Bío and Chile. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Concepción's incremental SNDi rose from 3.78 to 3.96 between 1991-2005 and 2006-2020. In terms of the aggregate network, Concepción ranked 2nd out of 6 cities in Bío-Bío and 20th out of 38 in Chile as of 2020.

New Street Additions (2006–2020)

SNDi value
3.96
Rank in Chile
32nd of 38
Rank in Bío-Bío
4th of 6

Entire Network (Aggregate)

SNDi value
3.06
Rank in Chile
20th of 38
Rank in Bío-Bío
2nd of 6

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

What about similarly populated cities?

2.73.64.55.4<19751976–19901991–20052006–2020SNDi of street additions
2.73.64.55.4<19751976–19901991–20052006–2020SNDi of entire street network
ConcepcionLatakiaKediri

While Latakia and Kediri both built increasingly disconnected streets over time, Concepción fluctuated in its street-construction patterns in new street additions. For the full street network, though, all three cities follow the same trend. Notably, Concepción had a more connected network than Latakia in 1975 but the two have since reversed their relative ranking.