Deder in context: Street-network sprawl trends
Deder in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Deder plotted against Oromia and Ethiopia. The SNDi of new construction in Deder peaked in 1991-2005, compared to Oromia which followed a zig-zag trend with an overall increase and Ethiopia which followed a zig-zag trend with an overall increase. Most recently, Deder's incremental SNDi fell from 5.97 to 2.77 between 1991-2005 and 2006-2020. In terms of the aggregate network, Deder ranked 63rd out of 71 cities in Oromia and 156th out of 181 in Ethiopia as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 2.77
- Rank in Ethiopia
- 47th of 181
- Rank in Oromia
- 18th of 71
Entire Network (Aggregate)
- SNDi value
- 3.76
- Rank in Ethiopia
- 156th of 181
- Rank in Oromia
- 63rd of 71
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
In new street additions, Deder and Hexi both built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Rovenky fluctuated in its street-construction patterns. For the full network, Deder and Hexi both grew more disconnected from 1975 through 1991-2005, then improved, while Rovenky became progressively more disconnected. Notably, Deder had a more connected network than Rovenky in 1975 but the two have since reversed their relative ranking.