Galkayo in context: Street-network sprawl trends

Galkayo in context

11.522.5<19751976–19901991–20052006–2020SNDi of street additions
11.522.5<19751976–19901991–20052006–2020SNDi of entire street network
GalkayoMudug (Region)Somalia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Galkayo plotted against Mudug and Somalia. The SNDi of new construction in Galkayo was at its lowest in 1976-1990, compared to Mudug which was at its lowest in 1976-1990 and Somalia which followed a zig-zag trend with an overall increase. Most recently, Galkayo's incremental SNDi rose from 1.28 to 1.56 between 1991-2005 and 2006-2020. In terms of the aggregate network, Galkayo ranked 1st out of 1 cities in Mudug and 12th out of 39 in Somalia as of 2020.

New Street Additions (2006–2020)

SNDi value
1.56
Rank in Somalia
10th of 39
Rank in Mudug
1st of 1

Entire Network (Aggregate)

SNDi value
1.38
Rank in Somalia
12th of 39
Rank in Mudug
1st of 1

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
GalkayoSanta CruzPuerto Montt

In new street additions, Galkayo built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Santa Cruz built increasingly disconnected streets over time and Puerto Montt fluctuated in its street-construction patterns. Looking at the full network, Santa Cruz and Puerto Montt both became progressively more disconnected, while Galkayo became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Galkayo and Santa Cruz have been growing further apart in their street-network character since 1975.