Debre Birhan in context: Street-network sprawl trends

Debre Birhan in context

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
Debre BirhanAmhara (Region)Ethiopia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Debre Birhan plotted against Amhara and Ethiopia. While Amhara and Ethiopia both followed a zig-zag trend with an overall increase, Debre Birhan's new street additions followed a zig-zag trend with an overall increase. Most recently, Debre Birhan's incremental SNDi rose from 2.7 to 3.29 between 1991-2005 and 2006-2020. In terms of the aggregate network, Debre Birhan ranked 10th out of 41 cities in Amhara and 76th out of 181 in Ethiopia as of 2020.

New Street Additions (2006–2020)

SNDi value
3.29
Rank in Ethiopia
89th of 181
Rank in Amhara
14th of 41

Entire Network (Aggregate)

SNDi value
2.3
Rank in Ethiopia
76th of 181
Rank in Amhara
10th of 41

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
Debre BirhanRawangYalova

In new street additions, Debre Birhan and Rawang both fluctuated in its street-construction patterns, while Yalova built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend. Notably, Debre Birhan had a more connected network than Yalova in 1975 but the two have since reversed their relative ranking.