Bukittinggi 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 Bukittinggi plotted against Sumatera Barat and Indonesia. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Bukittinggi's incremental SNDi rose from 4.99 to 6.53 between 1991-2005 and 2006-2020. In terms of the aggregate network, Bukittinggi ranked 2nd out of 7 cities in Sumatera Barat and 173rd 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?

• Kazipur, Bangladesh
• Hai'an, China
• Korhogo, Côte d'Ivoire
• Benipur, India
• Graz, Austria
• A Coruña, Spain

In new street additions, Bukittinggi and Benipur both built increasingly disconnected streets over time, while Kazipur built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full network, Bukittinggi and Benipur both became progressively more disconnected, while Kazipur grew more disconnected from 1975 through 1991-2005, then improved. Notably, Bukittinggi had a more sprawly network than Kazipur in 1975 but the two have since reversed their relative ranking.