Woldia in context: Street-network sprawl trends

Woldia 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
WoldiaAmhara (Region)Ethiopia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Woldia plotted against Amhara and Ethiopia. The SNDi of new construction in Woldia rose steadily, compared to Amhara which rose steadily and Ethiopia which followed a zig-zag trend with an overall increase. Most recently, Woldia's incremental SNDi rose from 3.07 to 4.09 between 1991-2005 and 2006-2020. In terms of the aggregate network, Woldia ranked 22nd out of 41 cities in Amhara and 119th out of 181 in Ethiopia as of 2020.

New Street Additions (2006–2020)

SNDi value
4.09
Rank in Ethiopia
122nd of 181
Rank in Amhara
23rd of 41

Entire Network (Aggregate)

SNDi value
2.91
Rank in Ethiopia
119th of 181
Rank in Amhara
22nd 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
WoldiaSalamancaZhao Jia Gou

In new street additions, Woldia built increasingly disconnected streets over time, while Salamanca built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns and 赵家沟 fluctuated in its street-construction patterns. For the full network, Woldia and 赵家沟 both became progressively more disconnected, while Salamanca became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Woldia and Salamanca have been growing further apart in their street-network character since 1975.