Ilo in context: Street-network sprawl trends

Ilo 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
IloMoquegua (Region)Peru (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ilo plotted against Moquegua and Peru. The SNDi of new construction in Ilo was at its lowest in 1991-2005, compared to Moquegua which was at its lowest in 1991-2005 and Peru which followed a zig-zag trend with an overall increase. Most recently, Ilo's incremental SNDi rose from 1.79 to 1.96 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ilo ranked 1st out of 2 cities in Moquegua and 12th out of 43 in Peru as of 2020.

New Street Additions (2006–2020)

SNDi value
1.96
Rank in Peru
6th of 43
Rank in Moquegua
1st of 2

Entire Network (Aggregate)

SNDi value
2.02
Rank in Peru
12th of 43
Rank in Moquegua
1st of 2

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

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
IloRio GrandeTalaja

In new street additions, Ilo built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, while Rio Grande fluctuated in its street-construction patterns and Talaja built increasingly disconnected streets over time. For the full network, Ilo became progressively more connected, while Rio Grande fluctuated in connectivity and Talaja became progressively more disconnected. Notably, Ilo had a more sprawly network than Talaja in 1975 but the two have since reversed their relative ranking.