Chencha in context: Street-network sprawl trends

Chencha in context

1.82.73.6<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.6<19751976–19901991–20052006–2020SNDi of entire street network
ChenchaSouthern Nations, Nationalities (Region)Ethiopia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Chencha plotted against Southern Nations, Nationalities and Ethiopia. The SNDi of new construction in Chencha 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, Chencha's incremental SNDi rose from 2.85 to 3.18 between 1991-2005 and 2006-2020. In terms of the aggregate network, Chencha ranked 23rd out of 39 cities in Southern Nations, Nationalities and 93rd out of 181 in Ethiopia as of 2020.

New Street Additions (2006–2020)

SNDi value
3.18
Rank in Ethiopia
81st of 181
Rank in Southern Nations, Nationalities
21st of 39

Entire Network (Aggregate)

SNDi value
2.54
Rank in Ethiopia
93rd of 181
Rank in Southern Nations, Nationalities
23rd of 39

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

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
ChenchaSirsiHuntfield Heights

While Sirsi and Huntfield Heights both built increasingly disconnected streets from 1975 through 1991-2005, then improved, Chencha built increasingly disconnected streets over time in new street additions. For the full network, Chencha and Huntfield Heights both became progressively more disconnected, while Sirsi grew more disconnected from 1975 through 1991-2005, then improved. Chencha and Sirsi have been converging in their street-network character since 1975.