Sibolga in context: Street-network sprawl trends

Sibolga in context

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
SibolgaSumatera Utara (Region)Indonesia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Sibolga plotted against Sumatera Utara and Indonesia. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Sibolga's incremental SNDi rose from 7.51 to 9.08 between 1991-2005 and 2006-2020. In terms of the aggregate network, Sibolga ranked 1st out of 21 cities in Sumatera Utara and 90th out of 366 in Indonesia as of 2020.

New Street Additions (2006–2020)

SNDi value
9.08
Rank in Indonesia
359th of 366
Rank in Sumatera Utara
20th of 21

Entire Network (Aggregate)

SNDi value
3.71
Rank in Indonesia
90th of 366
Rank in Sumatera Utara
1st of 21

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
SibolgaJangdeung-riNan'an

While Jangdeung-ri and Nan'an both fluctuated in its street-construction patterns, Sibolga built increasingly disconnected streets over time in new street additions. For the full network, Sibolga and Jangdeung-ri both became progressively more disconnected, while Nan'an fluctuated in connectivity. Sibolga and Jangdeung-ri have been growing further apart in their street-network character since 1975.