Bismil in context: Street-network sprawl trends
Bismil in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Bismil plotted against Diyarbakir and Turkey. The SNDi of new construction in Bismil rose steadily, compared to Diyarbakir which peaked in 1976-1990 and Turkey which followed a zig-zag trend with an overall increase. Most recently, Bismil's incremental SNDi rose from 1.86 to 2.16 between 1991-2005 and 2006-2020. In terms of the aggregate network, Bismil ranked 1st out of 5 cities in Diyarbakir and 64th out of 174 in Turkey as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 2.16
- Rank in Turkey
- 72nd of 174
- Rank in Diyarbakir
- 2nd of 5
Entire Network (Aggregate)
- SNDi value
- 1.85
- Rank in Turkey
- 64th of 174
- Rank in Diyarbakir
- 1st of 5
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
In new street additions, Bismil built increasingly disconnected streets over time, while Gegu fluctuated in its street-construction patterns and Burie built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Bismil became progressively more disconnected, while Gegu grew more disconnected from 1975 through 1976-1990, then improved and Burie became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards.