Bisceglie in context: Street-network sprawl trends

Bisceglie in context

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
BisceglieApulia (Region)Italy (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Bisceglie plotted against Apulia and Italy. The SNDi of new construction in Bisceglie rose steadily, compared to Apulia which followed a zig-zag trend with an overall increase and Italy which peaked in 1991-2005. Most recently, Bisceglie's incremental SNDi rose from 2.91 to 2.93 between 1991-2005 and 2006-2020. In terms of the aggregate network, Bisceglie ranked 6th out of 11 cities in Apulia and 11th out of 88 in Italy as of 2020.

New Street Additions (2006–2020)

SNDi value
2.93
Rank in Italy
25th of 88
Rank in Apulia
9th of 11

Entire Network (Aggregate)

SNDi value
2.0
Rank in Italy
11th of 88
Rank in Apulia
6th of 11

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

What about similarly populated cities?

1.82.433.6<19751976–19901991–20052006–2020SNDi of street additions
1.82.433.6<19751976–19901991–20052006–2020SNDi of entire street network
BisceglieYongqingFormiga

In new street additions, Bisceglie and Formiga both built increasingly disconnected streets over time, while Yongqing built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Bisceglie and Formiga both became progressively more disconnected, while Yongqing fluctuated in connectivity. Bisceglie and Yongqing have been converging in their street-network character since 1975.