Ljubljana in context: Street-network sprawl trends

Ljubljana in context

2.73.64.55.4<19751976–19901991–20052006–2020SNDi of street additions
2.73.64.55.4<19751976–19901991–20052006–2020SNDi of entire street network
LjubljanaOsrednjeslovenska (Region)Slovenia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ljubljana plotted against Osrednjeslovenska and Slovenia. The SNDi of new construction in Ljubljana followed a zig-zag trend with an overall increase, compared to Osrednjeslovenska which peaked in 1991-2005 and Slovenia which peaked in 1991-2005. Most recently, Ljubljana's incremental SNDi rose from 3.23 to 3.72 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ljubljana ranked 1st out of 1 cities in Osrednjeslovenska and 1st out of 2 in Slovenia as of 2020.

New Street Additions (2006–2020)

SNDi value
3.72
Rank in Slovenia
2nd of 2
Rank in Osrednjeslovenska
1st of 1

Entire Network (Aggregate)

SNDi value
2.42
Rank in Slovenia
1st of 2
Rank in Osrednjeslovenska
1st of 1

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

What about similarly populated cities?

2.73.64.55.4<19751976–19901991–20052006–2020SNDi of street additions
2.73.64.55.4<19751976–19901991–20052006–2020SNDi of entire street network
LjubljanaPasuruanRatnagiri

In new street additions, Ljubljana and Pasuruan both fluctuated in its street-construction patterns, while Ratnagiri built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend. Ljubljana and Pasuruan have been growing further apart in their street-network character since 1975.