Zarumilla in context: Street-network sprawl trends

Zarumilla in context

1.42.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
1.42.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
ZarumillaTumbes (Region)Peru (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Zarumilla plotted against Tumbes and Peru. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Zarumilla's incremental SNDi rose from 1.6 to 1.88 between 1991-2005 and 2006-2020. In terms of the aggregate network, Zarumilla ranked 1st out of 2 cities in Tumbes and 9th out of 43 in Peru as of 2020.

New Street Additions (2006–2020)

SNDi value
1.88
Rank in Peru
4th of 43
Rank in Tumbes
1st of 2

Entire Network (Aggregate)

SNDi value
1.9
Rank in Peru
9th of 43
Rank in Tumbes
1st of 2

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
ZarumillaDaboKabala

In new street additions, Zarumilla fluctuated in its street-construction patterns, while Dabo built increasingly disconnected streets from 1975 through 1976-1990, then improved and Kabala built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Zarumilla fluctuated in connectivity, while Dabo grew more disconnected from 1975 through 1976-1990, then improved and Kabala became progressively more disconnected.