Vilanova i la Geltrú in context: Street-network sprawl trends

Vilanova i la Geltru in context

1.21.82.43<19751976–19901991–20052006–2020SNDi of street additions
1.21.82.43<19751976–19901991–20052006–2020SNDi of entire street network
Vilanova i la GeltruCataluna (Region)Spain (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Vilanova i la Geltrú plotted against Cataluña and Spain. The SNDi of new construction in Vilanova i la Geltrú peaked in 1991-2005, compared to Cataluña which rose steadily and Spain which peaked in 1976-1990. Most recently, Vilanova i la Geltrú's incremental SNDi fell from 2.1 to 2.09 between 1991-2005 and 2006-2020. In terms of the aggregate network, Vilanova i la Geltrú ranked 5th out of 15 cities in Cataluña and 19th out of 85 in Spain as of 2020.

New Street Additions (2006–2020)

SNDi value
2.09
Rank in Spain
37th of 85
Rank in Cataluña
6th of 15

Entire Network (Aggregate)

SNDi value
1.62
Rank in Spain
19th of 85
Rank in Cataluña
5th of 15

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

What about similarly populated cities?

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
Vilanova i la GeltruPuchengDema

In new street additions, Vilanova i la Geltrú built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Pucheng built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns and Dema fluctuated in its street-construction patterns. For the full network, Vilanova i la Geltrú became progressively more disconnected, while Pucheng became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards and Dema fluctuated in connectivity. Vilanova i la Geltrú and Pucheng have been converging in their street-network character since 1975.