Tarapoto in context: Street-network sprawl trends

Tarapoto in context

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
TarapotoSan Martin (Region)Peru (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Tarapoto plotted against San Martín and Peru. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Tarapoto's incremental SNDi rose from 2.19 to 2.69 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tarapoto ranked 1st out of 2 cities in San Martín and 13th out of 43 in Peru as of 2020.

New Street Additions (2006–2020)

SNDi value
2.69
Rank in Peru
23rd of 43
Rank in San Martín
1st of 2

Entire Network (Aggregate)

SNDi value
2.18
Rank in Peru
13th of 43
Rank in San Martín
1st of 2

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

What about similarly populated cities?

246<19751976–19901991–20052006–2020SNDi of street additions
246<19751976–19901991–20052006–2020SNDi of entire street network
TarapotoRyongchonKothamangalam

While Ryongchon and Kothamangalam both built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, Tarapoto fluctuated in its street-construction patterns in new street additions. Looking at the full network, Ryongchon and Kothamangalam both became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards, while Tarapoto became progressively more disconnected.