Ziway in context: Street-network sprawl trends

Ziway 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
ZiwayOromia (Region)Ethiopia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ziway plotted against Oromia and Ethiopia. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Ziway's incremental SNDi rose from 1.31 to 2.11 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ziway ranked 6th out of 71 cities in Oromia and 19th out of 181 in Ethiopia as of 2020.

New Street Additions (2006–2020)

SNDi value
2.11
Rank in Ethiopia
22nd of 181
Rank in Oromia
6th of 71

Entire Network (Aggregate)

SNDi value
1.69
Rank in Ethiopia
19th of 181
Rank in Oromia
6th of 71

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

What about similarly populated cities?

1.42.12.83.5<19751976–19901991–20052006–2020SNDi of street additions
1.42.12.83.5<19751976–19901991–20052006–2020SNDi of entire street network
ZiwayPakaurShuangcheng

Ziway, Pakaur, and Shuangcheng all fluctuated in its street-construction patterns in new street construction. For the full network, Ziway fluctuated in connectivity, while Pakaur became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards and Shuangcheng became progressively more disconnected.