Sambas in context: Street-network sprawl trends

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Sambas plotted against Kalimantan Barat and Indonesia. The SNDi of new construction in Sambas was at its lowest in 1976-1990, compared to Kalimantan Barat which rose steadily and Indonesia which rose steadily. Most recently, Sambas's incremental SNDi rose from 5.03 to 6.44 between 1991-2005 and 2006-2020. In terms of the aggregate network, Sambas ranked 5th out of 9 cities in Kalimantan Barat and 262nd out of 366 in Indonesia as of 2020.

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

What about similarly populated cities?

• Shahbazpur, Bangladesh
• Digri, Pakistan
• Sant Andreu de la Barca, Spain
• Sohma, India
• Amaseri, Nigeria
• Kempville, South Africa

In new street additions, Sambas built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Shahbazpur built increasingly disconnected streets over time and Sohma fluctuated in its street-construction patterns. For the full network, Sambas became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards, while Shahbazpur became progressively more disconnected and Sohma fluctuated in connectivity. Sambas and Shahbazpur have been growing further apart in their street-network character since 1975.