Reggio nell'Emilia in context: Street-network sprawl trends

Reggio nell'Emilia in context

2.433.64.2<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.2<19751976–19901991–20052006–2020SNDi of entire street network
Reggio nell'EmiliaEmilia-Romagna (Region)Italy (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Reggio nell'Emilia plotted against Emilia-Romagna and Italy. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Reggio nell'Emilia's incremental SNDi fell from 4.09 to 3.7 between 1991-2005 and 2006-2020. In terms of the aggregate network, Reggio nell'Emilia ranked 10th out of 10 cities in Emilia-Romagna and 49th out of 88 in Italy as of 2020.

New Street Additions (2006–2020)

SNDi value
3.7
Rank in Italy
49th of 88
Rank in Emilia-Romagna
9th of 10

Entire Network (Aggregate)

SNDi value
2.81
Rank in Italy
49th of 88
Rank in Emilia-Romagna
10th of 10

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

What about similarly populated cities?

481216<19751976–19901991–20052006–2020SNDi of street additions
481216<19751976–19901991–20052006–2020SNDi of entire street network
Reggio nell'EmiliaParadise HillsCumbum

In new street additions, Reggio nell'Emilia built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Paradise Hills fluctuated in its street-construction patterns and Cumbum fluctuated in its street-construction patterns. For the full network, Reggio nell'Emilia became progressively more disconnected, while Paradise Hills fluctuated in connectivity and Cumbum fluctuated in connectivity. Reggio nell'Emilia and Cumbum have been growing further apart in their street-network character since 1975.