Trani in context: Street-network sprawl trends

Trani 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
TraniApulia (Region)Italy (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Trani plotted against Apulia and Italy. While Apulia and Italy both peaked in 1991-2005, Trani's new street additions peaked in 1991-2005. Most recently, Trani's incremental SNDi fell from 2.45 to 1.97 between 1991-2005 and 2006-2020. In terms of the aggregate network, Trani ranked 2nd out of 11 cities in Apulia and 3rd out of 88 in Italy as of 2020.

New Street Additions (2006–2020)

SNDi value
1.97
Rank in Italy
2nd of 88
Rank in Apulia
1st of 11

Entire Network (Aggregate)

SNDi value
1.48
Rank in Italy
3rd of 88
Rank in Apulia
2nd of 11

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
TraniQuezaltepequeSunabeda

In new street additions, Trani built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Quezaltepeque built increasingly disconnected streets over time and Sunabeda built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. For the full network, Trani and Quezaltepeque both became progressively more disconnected, while Sunabeda became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Trani and Quezaltepeque have been growing further apart in their street-network character since 1975.