Sant Boi de Llobregat in context: Street-network sprawl trends

Sant Boi de Llobregat in context

1.82.433.6<19751976–19901991–20052006–2020SNDi of street additions
1.82.433.6<19751976–19901991–20052006–2020SNDi of entire street network
Sant Boi de LlobregatCataluna (Region)Spain (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Sant Boi de Llobregat plotted against Cataluña and Spain. While Cataluña and Spain both peaked in 1976-1990, Sant Boi de Llobregat's new street additions peaked in 1976-1990. Most recently, Sant Boi de Llobregat's incremental SNDi fell from 2.39 to 2.29 between 1991-2005 and 2006-2020. In terms of the aggregate network, Sant Boi de Llobregat ranked 10th out of 15 cities in Cataluña and 41st out of 85 in Spain as of 2020.

New Street Additions (2006–2020)

SNDi value
2.29
Rank in Spain
42nd of 85
Rank in Cataluña
7th of 15

Entire Network (Aggregate)

SNDi value
1.9
Rank in Spain
41st of 85
Rank in Cataluña
10th of 15

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
Sant Boi de LlobregatPanaboMuvattupuzha

In new street additions, Sant Boi de Llobregat built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Panabo built increasingly disconnected streets over time and Muvattupuzha built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Sant Boi de Llobregat and Panabo both became progressively more disconnected, while Muvattupuzha became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Sant Boi de Llobregat and Panabo have been growing further apart in their street-network character since 1975.