Bontang in context: Street-network sprawl trends

Bontang in context

3.64.55.46.3<19751976–19901991–20052006–2020SNDi of street additions
3.64.55.46.3<19751976–19901991–20052006–2020SNDi of entire street network
BontangKalimantan Timur (Region)Indonesia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Bontang plotted against Kalimantan Timur and Indonesia. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Bontang's incremental SNDi rose from 4.6 to 6.55 between 1991-2005 and 2006-2020. In terms of the aggregate network, Bontang ranked 2nd out of 7 cities in Kalimantan Timur and 183rd out of 366 in Indonesia as of 2020.

New Street Additions (2006–2020)

SNDi value
6.55
Rank in Indonesia
292nd of 366
Rank in Kalimantan Timur
5th of 7

Entire Network (Aggregate)

SNDi value
4.21
Rank in Indonesia
183rd of 366
Rank in Kalimantan Timur
2nd of 7

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

What about similarly populated cities?

234567<19751976–19901991–20052006–2020SNDi of street additions
234567<19751976–19901991–20052006–2020SNDi of entire street network
BontangNewportKwekwe

In new street additions, Bontang and Newport both built increasingly disconnected streets over time, while Kwekwe built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend. Bontang and Newport have been growing further apart in their street-network character since 1975.