Gravatá in context: Street-network sprawl trends

Gravata in context

2.433.64.2<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.2<19751976–19901991–20052006–2020SNDi of entire street network
GravataPernambuco (Region)Brazil (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Gravatá plotted against Pernambuco and Brazil. The SNDi of new construction in Gravatá was at its lowest in 1976-1990, compared to Pernambuco which followed a zig-zag trend with an overall increase and Brazil which followed a zig-zag trend with an overall increase. Most recently, Gravatá's incremental SNDi rose from 3.65 to 4.04 between 1991-2005 and 2006-2020. In terms of the aggregate network, Gravatá ranked 15th out of 15 cities in Pernambuco and 323rd out of 365 in Brazil as of 2020.

New Street Additions (2006–2020)

SNDi value
4.04
Rank in Brazil
254th of 365
Rank in Pernambuco
15th of 15

Entire Network (Aggregate)

SNDi value
3.72
Rank in Brazil
323rd of 365
Rank in Pernambuco
15th of 15

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

What about similarly populated cities?

36912<19751976–19901991–20052006–2020SNDi of street additions
36912<19751976–19901991–20052006–2020SNDi of entire street network
GravataSan AndresDaulatpur

In new street additions, Gravatá built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while San Andrés fluctuated in its street-construction patterns and Daulatpur built increasingly disconnected streets over time. Looking at the full network, San Andrés and Daulatpur both became progressively more disconnected, while Gravatá became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Notably, Gravatá had a more sprawly network than Daulatpur in 1975 but the two have since reversed their relative ranking.