Terrassa in context: Street-network sprawl trends

Terrassa in context

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
TerrassaCataluna (Region)Spain (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Terrassa plotted against Cataluña and Spain. The SNDi of new construction in Terrassa rose steadily, compared to Cataluña which rose steadily and Spain which peaked in 1976-1990. Most recently, Terrassa's incremental SNDi rose from 3.3 to 4.5 between 1991-2005 and 2006-2020. In terms of the aggregate network, Terrassa ranked 11th out of 15 cities in Cataluña and 43rd out of 85 in Spain as of 2020.

New Street Additions (2006–2020)

SNDi value
4.5
Rank in Spain
79th of 85
Rank in Cataluña
14th of 15

Entire Network (Aggregate)

SNDi value
1.92
Rank in Spain
43rd of 85
Rank in Cataluña
11th of 15

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

What about similarly populated cities?

123456<19751976–19901991–20052006–2020SNDi of street additions
123456<19751976–19901991–20052006–2020SNDi of entire street network
TerrassaHasilpurLongchang

In new street additions, Terrassa and Hasilpur both built increasingly disconnected streets over time, while Longchang built increasingly connected streets over time. For the full network, Terrassa and Hasilpur both became progressively more disconnected, while Longchang became progressively more connected. Terrassa and Longchang have been converging in their street-network character since 1975.