Saray Osmangazi in context: Street-network sprawl trends

Saray Osmangazi 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
Saray OsmangaziAnkara (Region)Turkey (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Saray Osmangazi plotted against Ankara and Turkey. The SNDi of new construction in Saray Osmangazi fell steadily, compared to Ankara which followed a zig-zag trend with an overall increase and Turkey which followed a zig-zag trend with an overall increase. Most recently, Saray Osmangazi's incremental SNDi fell from 2.44 to 2.25 between 1991-2005 and 2006-2020. In terms of the aggregate network, Saray Osmangazi ranked 7th out of 8 cities in Ankara and 131st out of 174 in Turkey as of 2020.

New Street Additions (2006–2020)

SNDi value
2.25
Rank in Turkey
82nd of 174
Rank in Ankara
6th of 8

Entire Network (Aggregate)

SNDi value
2.65
Rank in Turkey
131st of 174
Rank in Ankara
7th of 8

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
Saray OsmangaziBergenZhijin

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