Surakarta in context: Street-network sprawl trends

Surakarta in context

3.64.55.4<19751976–19901991–20052006–2020SNDi of street additions
3.64.55.4<19751976–19901991–20052006–2020SNDi of entire street network
SurakartaJawa Tengah (Region)Indonesia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Surakarta plotted against Jawa Tengah and Indonesia. The SNDi of new construction in Surakarta followed a zig-zag trend with an overall increase, compared to Jawa Tengah which rose steadily and Indonesia which rose steadily. Most recently, Surakarta's incremental SNDi rose from 3.78 to 4.38 between 1991-2005 and 2006-2020. In terms of the aggregate network, Surakarta ranked 9th out of 47 cities in Jawa Tengah and 57th out of 366 in Indonesia as of 2020.

New Street Additions (2006–2020)

SNDi value
4.38
Rank in Indonesia
55th of 366
Rank in Jawa Tengah
11th of 47

Entire Network (Aggregate)

SNDi value
3.46
Rank in Indonesia
57th of 366
Rank in Jawa Tengah
9th of 47

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

What about similarly populated cities?

2.83.54.24.95.6<19751976–19901991–20052006–2020SNDi of street additions
2.83.54.24.95.6<19751976–19901991–20052006–2020SNDi of entire street network
SurakartaTegalBrasilia

In new street additions, Surakarta fluctuated in its street-construction patterns, while Tegal built increasingly disconnected streets from 1975 through 1991-2005, then improved and Brasilia built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend. Notably, Surakarta had a more sprawly network than Brasilia in 1975 but the two have since reversed their relative ranking.