Anzio in context: Street-network sprawl trends

Anzio in context

3456<19751976–19901991–20052006–2020SNDi of street additions
3456<19751976–19901991–20052006–2020SNDi of entire street network
AnzioLazio (Region)Italy (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Anzio plotted against Lazio and Italy. The SNDi of new construction in Anzio rose steadily, compared to Lazio which rose steadily and Italy which peaked in 1991-2005. Most recently, Anzio's incremental SNDi rose from 5.59 to 6.06 between 1991-2005 and 2006-2020. In terms of the aggregate network, Anzio ranked 7th out of 7 cities in Lazio and 88th out of 88 in Italy as of 2020.

New Street Additions (2006–2020)

SNDi value
6.06
Rank in Italy
85th of 88
Rank in Lazio
7th of 7

Entire Network (Aggregate)

SNDi value
4.67
Rank in Italy
88th of 88
Rank in Lazio
7th of 7

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
AnzioTaeanAjdabiya

In new street additions, Anzio built increasingly disconnected streets over time, while Taean fluctuated in its street-construction patterns and Ajdabiya built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full street network, though, all three cities follow the same trend. Anzio and Taean have been growing further apart in their street-network character since 1975.