Akyazı in context: Street-network sprawl trends

Akyazi in context

22.533.5<19751976–19901991–20052006–2020SNDi of street additions
22.533.5<19751976–19901991–20052006–2020SNDi of entire street network
AkyaziSakarya (Region)Turkey (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Akyazı plotted against Sakarya and Turkey. The SNDi of new construction in Akyazı rose steadily, compared to Sakarya which peaked in 1976-1990 and Turkey which followed a zig-zag trend with an overall increase. Most recently, Akyazı's incremental SNDi rose from 3.01 to 3.62 between 1991-2005 and 2006-2020. In terms of the aggregate network, Akyazı ranked 3rd out of 3 cities in Sakarya and 141st out of 174 in Turkey as of 2020.

New Street Additions (2006–2020)

SNDi value
3.62
Rank in Turkey
153rd of 174
Rank in Sakarya
3rd of 3

Entire Network (Aggregate)

SNDi value
2.84
Rank in Turkey
141st of 174
Rank in Sakarya
3rd of 3

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

What about similarly populated cities?

1.42.12.83.5<19751976–19901991–20052006–2020SNDi of street additions
1.42.12.83.5<19751976–19901991–20052006–2020SNDi of entire street network
AkyaziHoutenAl Qusair

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