Doyogena in context: Street-network sprawl trends

Doyogena in context

2.433.64.2<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.2<19751976–19901991–20052006–2020SNDi of entire street network
DoyogenaSouthern Nations, Nationalities (Region)Ethiopia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Doyogena plotted against Southern Nations, Nationalities and Ethiopia. The SNDi of new construction in Doyogena was at its lowest in 1976-1990, compared to Southern Nations, Nationalities which followed a zig-zag trend with an overall increase and Ethiopia which followed a zig-zag trend with an overall increase. Most recently, Doyogena's incremental SNDi rose from 3.19 to 4.06 between 1991-2005 and 2006-2020. In terms of the aggregate network, Doyogena ranked 35th out of 39 cities in Southern Nations, Nationalities and 149th out of 181 in Ethiopia as of 2020.

New Street Additions (2006–2020)

SNDi value
4.06
Rank in Ethiopia
119th of 181
Rank in Southern Nations, Nationalities
29th of 39

Entire Network (Aggregate)

SNDi value
3.44
Rank in Ethiopia
149th of 181
Rank in Southern Nations, Nationalities
35th of 39

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

What about similarly populated cities?

2.83.54.24.9<19751976–19901991–20052006–2020SNDi of street additions
2.83.54.24.9<19751976–19901991–20052006–2020SNDi of entire street network
DoyogenaJunlianSanawad

In new street additions, Doyogena built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Junlian built increasingly disconnected streets over time and Sanawad fluctuated in its street-construction patterns. For the full network, Doyogena became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards, while Junlian became progressively more disconnected and Sanawad fluctuated in connectivity. Doyogena and Junlian have been growing further apart in their street-network character since 1975.