Luena in context: Street-network sprawl trends

Luena in context

22.533.5<19751976–19901991–20052006–2020SNDi of street additions
22.533.5<19751976–19901991–20052006–2020SNDi of entire street network
LuenaMoxico (Region)Angola (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Luena plotted against Moxico and Angola. The SNDi of new construction in Luena peaked in 1991-2005, compared to Moxico which peaked in 1976-1990 and Angola which rose steadily. Most recently, Luena's incremental SNDi fell from 2.97 to 1.93 between 1991-2005 and 2006-2020. In terms of the aggregate network, Luena ranked 3rd out of 6 cities in Moxico and 19th out of 56 in Angola as of 2020.

New Street Additions (2006–2020)

SNDi value
1.93
Rank in Angola
11th of 56
Rank in Moxico
2nd of 6

Entire Network (Aggregate)

SNDi value
2.18
Rank in Angola
19th of 56
Rank in Moxico
3rd of 6

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

What about similarly populated cities?

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
LuenaSerembanArdabil

In new street additions, Luena built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Seremban fluctuated in its street-construction patterns and Ardabil built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Luena grew more disconnected from 1975 through 1991-2005, then improved, while Seremban became progressively more disconnected and Ardabil became progressively more connected. Luena and Ardabil have been converging in their street-network character since 1975.