Quiha in context: Street-network sprawl trends

Quiha in context

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
QuihaTigray (Region)Ethiopia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Quiha plotted against Tigray and Ethiopia. The SNDi of new construction in Quiha rose steadily, compared to Tigray which followed a zig-zag trend with an overall increase and Ethiopia which followed a zig-zag trend with an overall increase. Most recently, Quiha's incremental SNDi rose from 3.66 to 4.27 between 1991-2005 and 2006-2020. In terms of the aggregate network, Quiha ranked 10th out of 12 cities in Tigray and 141st out of 181 in Ethiopia as of 2020.

New Street Additions (2006–2020)

SNDi value
4.27
Rank in Ethiopia
127th of 181
Rank in Tigray
10th of 12

Entire Network (Aggregate)

SNDi value
3.29
Rank in Ethiopia
141st of 181
Rank in Tigray
10th of 12

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

What about similarly populated cities?

2.433.64.2<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.2<19751976–19901991–20052006–2020SNDi of entire street network
QuihaMilton KeynesAlmada

In new street additions, Quiha and Milton Keynes both built increasingly disconnected streets over time, while Almada built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Quiha and Milton Keynes both became progressively more disconnected, while Almada became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Notably, Quiha had a more connected network than Milton Keynes in 1975 but the two have since reversed their relative ranking.