Saurimo in context: Street-network sprawl trends

Saurimo in context

1.522.53<19751976–19901991–20052006–2020SNDi of street additions
1.522.53<19751976–19901991–20052006–2020SNDi of entire street network
SaurimoLunda Sul (Region)Angola (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Saurimo plotted against Lunda Sul and Angola. The SNDi of new construction in Saurimo was at its lowest in 1991-2005, compared to Lunda Sul which was at its lowest in 1991-2005 and Angola which rose steadily. Most recently, Saurimo's incremental SNDi rose from 1.23 to 1.53 between 1991-2005 and 2006-2020. In terms of the aggregate network, Saurimo ranked 1st out of 1 cities in Lunda Sul and 12th out of 56 in Angola as of 2020.

New Street Additions (2006–2020)

SNDi value
1.53
Rank in Angola
8th of 56
Rank in Lunda Sul
1st of 1

Entire Network (Aggregate)

SNDi value
1.88
Rank in Angola
12th of 56
Rank in Lunda Sul
1st of 1

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

What about similarly populated cities?

0.91.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
0.91.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
SaurimoBolognaEtah

In new street additions, Saurimo built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, while Bologna fluctuated in its street-construction patterns and Etah built increasingly disconnected streets from 1975 through 1991-2005, then improved. Looking at the full network, Bologna and Etah both became progressively more disconnected, while Saurimo became progressively more connected. Saurimo and Bologna have been growing further apart in their street-network character since 1975.