Bandırma 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 Bandırma plotted against Balikesir and Turkey. The SNDi of new construction in Bandırma rose steadily, compared to Balikesir which followed a zig-zag trend with an overall increase and Turkey which followed a zig-zag trend with an overall increase. Most recently, Bandırma's incremental SNDi rose from 1.1 to 1.32 between 1991-2005 and 2006-2020. In terms of the aggregate network, Bandırma ranked 1st out of 3 cities in Balikesir and 1st out of 174 in Turkey as of 2020.

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

What about similarly populated cities?

• Cangxi County, China
• Mishan, China
• Dir, Pakistan
• Ambovombe, Madagascar
• Gia Kiệm, Vietnam
• Keshod, India

In new street additions, Bandırma and Ambovombe both built increasingly disconnected streets over time, while Cangxi County fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend. Bandırma and Ambovombe have been growing further apart in their street-network character since 1975.