Dilla in context: Street-network sprawl trends

Dilla in context

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
DillaSouthern Nations, Nationalities (Region)Ethiopia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Dilla plotted against Southern Nations, Nationalities and Ethiopia. The SNDi of new construction in Dilla rose steadily, 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, Dilla's incremental SNDi rose from 1.54 to 2.75 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dilla ranked 4th out of 39 cities in Southern Nations, Nationalities and 18th out of 181 in Ethiopia as of 2020.

New Street Additions (2006–2020)

SNDi value
2.75
Rank in Ethiopia
43rd of 181
Rank in Southern Nations, Nationalities
13th of 39

Entire Network (Aggregate)

SNDi value
1.67
Rank in Ethiopia
18th of 181
Rank in Southern Nations, Nationalities
4th of 39

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

What about similarly populated cities?

246<19751976–19901991–20052006–2020SNDi of street additions
246<19751976–19901991–20052006–2020SNDi of entire street network
DillaBaodeAgbara

While Baode and Agbara both built increasingly disconnected streets from 1975 through 1976-1990, then improved, Dilla built increasingly disconnected streets over time in new street additions. For the full network, Dilla and Agbara both became progressively more disconnected, while Baode grew more disconnected from 1975 through 1976-1990, then improved.