Cizre in context: Street-network sprawl trends

Cizre in context

22.42.83.2<19751976–19901991–20052006–2020SNDi of street additions
22.42.83.2<19751976–19901991–20052006–2020SNDi of entire street network
CizreSirnak (Region)Turkey (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Cizre plotted against Sirnak and Turkey. The SNDi of new construction in Cizre rose steadily, compared to Sirnak which peaked in 1976-1990 and Turkey which followed a zig-zag trend with an overall increase. Most recently, Cizre's incremental SNDi rose from 2.75 to 3.05 between 1991-2005 and 2006-2020. In terms of the aggregate network, Cizre ranked 2nd out of 3 cities in Sirnak and 127th out of 174 in Turkey as of 2020.

New Street Additions (2006–2020)

SNDi value
3.05
Rank in Turkey
136th of 174
Rank in Sirnak
2nd of 3

Entire Network (Aggregate)

SNDi value
2.53
Rank in Turkey
127th of 174
Rank in Sirnak
2nd of 3

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

What about similarly populated cities?

0.71.42.12.8<19751976–19901991–20052006–2020SNDi of street additions
0.71.42.12.8<19751976–19901991–20052006–2020SNDi of entire street network
CizreDoka AshafaCaxias

In new street additions, Cizre and Doka Ashafa both built increasingly disconnected streets over time, while Caxias built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Cizre and Doka Ashafa both became progressively more disconnected, while Caxias grew more disconnected from 1975 through 1991-2005, then improved. Cizre and Doka Ashafa have been converging in their street-network character since 1975.